Doctors in Ontario use emergency CT less than in U.S

By Trevor Stokes

NEW YORK (Reuters Health) - Emergency patients received nearly twice as many CT scans in the U.S. as in Ontario in recent years, according to a new study that also found use of the high-powered X-rays is rising in both countries.

Doctors use CT scans to get a clearer image of the interior of the body than regular X-rays can provide, but the imaging is costly and exposes patients to higher levels of radiation - raising concern about cancer risks from repeated CTs, especially in children.

"Our study wasn't able to look at whether this was a good thing or a bad thing for patients in terms of patient outcome, but I think it does beg the question: Since the technology is available in both countries, why is it being used twice as often in the U.S.?" said study author Dr. Carl Berdahl, emergency medicine resident at Los Angeles County University of Southern California Medical Center.

He and his colleagues compared 699 million U.S. emergency department medical records to 26 million from Ontario, covering the years 2003 to 2008.

Overall, nearly 1 out of every 9 U.S. emergency patients received a CT scan, compared with 1 in 17 Ontario emergency patients.

Patients being treated for trauma - for instance to the head or abdomen - received CT scans nearly four times as often in the U.S. compared with Ontario, according to the results published in the Annals of Emergency Medicine.

However, in both the U.S. and Ontario, an equal proportion - 45 percent - of the sickest non-trauma emergency patients received CT scans.

During the study period, CT scans of children aged 10 and younger increased in the U.S. while at the same time decreasing in Canada.

The researchers focused on how often emergency doctors used CT scans to assess patients with abdominal pain, headache, chest pain or shortness of breath.

The U.S. data came from estimates from national surveys, whereas the Ontario data came from the provincial registry that closely tracks emergency medicine.

"We use the technology in the U.S. a lot more and expose more children to radiation; but we're not sure at this stage whether one strategy may be better than the other," said Berdahl.

Dr. Keith E. Kocher, an expert in emergency use of CT scans and instructor of emergency medicine at the University of Michigan, wasn't surprised with the results, and said the study could help sharpen the focus on what is driving differences between the U.S. and Canada in the use of CT for diagnosis.

While the study could not discern whether the U.S. overtested or Ontario undertested, Kocher said evidence from other studies suggests that U.S. doctors scanned emergency patients excessively.

Based on those studies, several factors may drive ER doctors in the U.S. to overuse CT: lack of time for well-thought-out decisions, unfamiliarity with patients, fear of litigation and the technological imperative that a doctor is more likely to use a CT scanner if the machine is nearby.

Nearly all U.S. patients (97 percent) had access to a CT scanner, while 80 percent of Ontarians had access.

Physicians and others may come to realize that they're overtesting and also at some point, CT scan use will stop growing because of the finite number of eligible patients, he said.

Non-radioactive alternatives to CT scans include ultrasound and MRI. Ultrasounds, like those used for expecting mothers, give less information and are not available in ERs in small hospitals. MRIs give detailed information, but are very costly and not available in most ERs, experts noted.

Berdahl and colleagues are looking into the feasibility of using radiation-free ultrasound and MRIs to help diagnose appendicitis in children.

Regardless of the disparities between the U.S. and Ontario, "in both places, they're doing too many studies (CT scans)," said Howard Forman, health economist at Yale University and practicing emergency/trauma radiologist.

Other research has found unnecessarily repeated CT scans, patients who didn't meet the criteria to have a CT scan and, more rarely, CT scans that get ordered because of miscommunication, noted Forman, who was not involved in the current study.

"In some instances, the appropriate study (CT scan) is done, but waiting an extra three or six hours may have avoided the need for doing the study," he told Reuters Health. "Sometimes we're so quick to want to image problems that we're not willing to wait to see if the symptoms resolve on their own."

The U.S. system also depends on high throughput of patient and in many cases, fee for service, which can give doctors incentives to scan patients instead of waiting symptoms out, experts said.

"In the U.S. system, there are strong incentives to get the CT scan done now and send the patient home or to the operating room," Forman said.

SOURCE: bit.ly/17EcP8t Annals of Emergency Medicine, online May 16, 2013.

Source: http://news.yahoo.com/doctors-ontario-emergency-ct-less-u-205431402.html

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Casio Signature XJ-M155

The Casio Signature XJ-M155 provides good data image quality, and video suitable for typical business or classroom presentations. This 3D-capable projector has a good range of connectivity choices, including the ability to project via Wi-Fi or from a USB thumb drive. Although you can buy high-quality XGA data projectors for considerably less, the XJ-M155's light source should last the lifetime of the projector, saving you from having to replace the lamp every few years.

The projector is rated at 3,000 lumens and has XGA (1,024 by 768) native resolution. It uses the same hybrid LED/laser light source that we've seen in the Casio Signature XJ-M255 and other models in the company's Signature and Slim projector lines. Instead of producing red, green, and blue using a standard lamp and a color wheel, it produces red with LEDs, blue with lasers, and green by shining the blue laser light on a phosphor. Its optical system directs the red, green, and blue light to the DLP chip, and out the front lens.

A key advantage of this system is the lamp's 20,000-hour expected lifetime, which means it should last for the life of the projector. The lifetime of standard lamps typically ranges from 2,000 to 5,000 hours, and replacement bulbs can cost several hundred dollars.

Size and Connectivity
The XJ-M155 measures 3.3 by 12.2 by 9.6 inches (HWD) and weighs 8.6 pounds. Although it's most appropriate for use on a cart, or even permanently installed, it's light enough to take with you on the occasional trip. It comes with a soft carrying case, complete with a pocket for cables.

The XJ-M155 can read JPG and AVI files from a USB memory key, so you can run a presentation from the USB key and leave your laptop at home. When you plug in a USB key, the projector will automatically switch to it and give you a menu of options to find the files on the key and show them. Casio includes a Casio-specific version of ArcSoft MediaConverter to move most common formats to JPG or AVI.

The XJ-M155 is Wi-Fi enabled, and can run presentations from Android, iOS, and Windows Mobile smartphones and computers running MobiShow software.

Other connectors include an HDMI port for a computer or video source; a VGA port for a computer, which doubles as a component video port; S-Video, 3 RCA jacks for composite audio/video; audio-in, audio-out, a serial port, and an Ethernet LAN connection.

Image Quality
The XJ-M155 is bright enough to throw a fairly large image even in a brightly lit room. I did most of the still and video image testing under theater-dark conditions with the projector about 8 feet from the screen, projecting an approximately 6 foot diagonal image.

The projector in general did well on our suite DisplayMate tests. Colors were a little dull in Graphics mode; some images with white or gray backgrounds showed a trace of green tinting. The image was brighter and colors were bright and well saturated in Standard mode, though there was also more tinting. Some yellows looked mustardy. The XJ-M155 did well on our text tests, with type readable if a bit blurry at our smallest white-on-black size.

The XJ-M155, like all single-chip DLP projectors, has the potential for showing a rainbow effect in which light areas break up into little red-green-blue flashes when you shift your gaze or in moving images, particularly ones with bright areas against a dark background. Though I saw the effect in data images, it was not severe enough to be an issue, even to people who are sensitive to it. This projector's image quality should be fine for typical data presentations for businesses or classrooms.

The XJ-M155 is adequate for shorter video clips as part of a presentation. I frequently saw rainbow artifacts in video scenes, more so than in a typical DLP projector, and people sensitive to the effect will likely be distracted by it. Even if you're not sensitive to it, it may be an issue for your audience.

The XJ-M155's 5-watt mono speaker puts out decent-quality audio that's loud enough to fill a smallish conference room. The XJ-M155's warranty is three years for the projector itself, plus 6,000 hours for the light source, a lot longer than the usual 90-day lamp warranty. It's likely that the light source will outlast the projector.

The XJ-M155 is 3D capable, though it requires active-shutter DLP-link compatible 3D glasses. Casio sells its own branded glasses for $129.99 (direct) per pair, and active-shutter DLP-link glasses are available from other manufacturers for considerably less. It could still prove pricey if you're trying to outfit a classroom for 3D viewing.

The XJ-M155 is priced lower than the higher (WXGA) resolution Casio Signature XJ-M255, but otherwise is very similar, with slightly better text quality. They both have the same generous set of connectivity choices. On the downside, both showed significant rainbow effect in video.

The Casio XJ-M155 is not as bright as the Editors' Choice Epson PowerLite 1835 XGA 3LCD Projector, which is rated at 3,500 lumens. As an LCD projector, the Epson 1835 is free from the rainbow effect, and it has above-par video and great data image quality. Both the XJ-M155 and Epson 1835 let you run presentations from a USB thumb drive and offer WiFi connectivity, though Epson 1835's is through an optional ($99) dongle. The XJ-M155 is 3D capable, while the Epson 1835 is not.

The BenQ LX60ST, a short-throw data projector, also uses a laser-based light engine, but unlike the Casio projectors, which combine lasers and LEDs, it uses lasers for all three colors. It has excellent data image quality and passable video, though it's relatively dim at 2,000 rated lumens.

The Casio Signature XJ-M155 is a good projector for classrooms and conference rooms, able to handle most any data presentation and show passable video. Its light source should last the lifetime of the projector, saving money in the long term over projectors with conventional lamps that may need to be replaced every few years. It's 3D capable, and has a good selection of connectivity choices, including the ability to run presentations via Wi-Fi or from a USB thumb drive.

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/-1WnEbFIP98/0,2817,2387955,00.asp

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Star astronaut Chris Hadfield's future up in the air

NASA

Canadian Space Agency astronaut Chris Hadfield, Expedition 34 flight engineer, floats freely in the Unity node of the International Space Station in this photo taken on Dec. 31, 2012.

By Elizabeth Howell
Space.com

With star astronaut Chris Hadfield recently back on planet Earth after five months in orbit, many are wondering what he will do next.

Will Hadfield stay with the Canadian Space Agency? Bring his outreach skills to politics or business? Or do something different altogether?

"Chris will have people knocking onhis door from every single possible area of work imaginable, and I'm sure that there are already probably 1,000 requests to come and speak," said three-time space shuttle flyer Marc Garneau, who became Canada's first astronaut in space in 1984. [Astronaut Chris Hadfield's 8 Most Amazing Space Moments]

"It'll be fun, but also tough for him to make a decision," Garneau said. "I have no idea what his plans are. We are very good friends, but I've never asked. It'll be interesting to see."

Hadfield's wife, Helene, speaking from Houston on May 14 just hours after her husband's landing, told Space.com that the subject of a post-flight career didn't come up in their hours of ground-to-space phone conversations.

"We're always thinking about the next step, but really, at this point, all I know is anything Chris does is always an adventure," she said. "No matter what he does, he really likes what he's doing. It'll grow organically, but right now all he's thinking about is this mission."

'It's like asking an infant if they're ready for their Ph.D.'
Hadfield's stay on the International Space Station ?? which included commanding the Expedition 35 mission ? made headlines worldwide. The astronaut, in between running a productive science mission, found time to play mini-concerts, chat with celebrities from orbit and post hundreds of pictures on Twitter.

NASA / Carla Cioffi

Expedition 35 commander Chris Hadfield of the Canadian Space Agency, left, Russian flight engineer Roman Romanenko of the Russian Federal Space Agency, center, and NASA flight engineer Tom Marshburn sit in chairs outside the Soyuz capsule just minutes after they landed in a remote area outside the town of Dzhezkazgan, Kazakhstan, on May 14.

Hadfield has shied away from talk about his future in the weeks since landing.

In a news conference three days after he returned to Earth, Hadfield told reporters he was too busy focusing on recovering from microgravity's effects to think about what to do after the mission.

"I'm trying to stand up straight, and I have to sit down in the shower so I don't faint and fall down," Hadfield said May 16. "It's like asking an infant if they're ready for their Ph.D. yet. I'll get there, but it's too early to say."

So far, Hadfield has debriefings and a few public appearances on his schedule, as well as extensive medical checkups. He's scheduled to play in a concert on July 1 ? Canada's national holiday ? on Parliament Hill in Canada's capital of Ottawa. [Hadfield?Hits: How To Shave In Space | Video]

It's questionable that Hadfield would go to space again as a government astronaut, experts say. There are two rookie Canadian astronauts ? Jeremy Hansen and David Saint-Jacques ? who are in training and awaiting flights themselves.

Commercial direction unlikely at this time
Canada is?entitled to only a small number of flights compared to the larger contributors to the space station: NASA, Roscosmos (Russia's space agency), the European Space Agency and JAXA (Japan's space agency).

Canada's "credits" for spaceflight come through its science and its robotics contributions to the station, CSA interim President Gilles Leclerc told Space.com in May. Canada's 2.3 percent utilization right of the orbiting laboratory entitles the country to a send another astronaut to space around 2018, but Leclerc said he is negotiating for an earlier date ? perhaps 2016.

Commercial spaceflights might be possible for Hadfield, who is a former NORAD fighter pilot. In May, Virgin Galactic hired four-time space shuttle astronaut C.J. Sturckow?to conduct flight training and testing with SpaceShipTwo, a suborbital spaceship under development.

Still, Helene Hadfield said it was premature to talk about her husband piloting a commercial ship.

"It's not the time to go into a commercial company," she said, citing the months of debriefing, rehabilitation, touring and other post-flight activities Hadfield faces. "Maybe in the future, but he's so happy (with the CSA). He has nothing against that, but the timing is not really right for right now."

Contrast between space and politics
After his third spaceflight, Garneau, Canada's first astronaut, chose to leave space traveling for the management echelons of the Canadian Space Agency, where he later served as president for four years.

His reasoning for leaving was it would be a long wait for a fourth flight, Garneau told Space.com. Additionally, Garneau wanted to bring his young children, who had been living in Houston, back to Canada.

If Hadfield did turn to politics, Garneau ? now a Montreal-area member of Parliament for Canada's Liberal party ? pointed to a change between an astronaut's public persona and that of a politician.

As an astronaut, he said, "you're a fairly popular figure in the sense that people like to hear from astronauts and to hear about space."

Garneau, in fact, partially made a living as a speaker in between an unsuccessful attempt at winning a seat for the Liberals in 2006, and his successful election in 2008.

"But when you enter politics," Garneau added, "you identify yourself with a particular party, particular values, particular policies. At that point, you're open to being criticized by people."

Hadfield's next journey will be to Russia in early June, as the astronaut begins debriefings at various space agencies that contributed science to the mission.

Follow Elizabeth Howell @howellspace, or Space.com @Spacedotcom. We're also on Facebook and Google+.

Copyright 2013 Space.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://feeds.nbcnews.com/c/35002/f/653377/s/2ce23fef/l/0Lscience0Bnbcnews0N0C0Inews0C20A130C0A60C0A50C187767590Estar0Eastronaut0Echris0Ehadfields0Efuture0Eup0Ein0Ethe0Eair0Dlite/story01.htm

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Pandora Ditches PS3 and Xbox 360 Apps For a Special HTML5 TV Interface

Starting today, you don't need to use a standalone application to access Pandora through your Playstation 3 or Xbox 360. The company has built a new HTML5 home for its services that's specially tailored for your TV. Simply point your console's browser to tv.pandora.com, login, and you'll be good to go.

Read more...

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/CYMWKhF0_io/pandora-ditches-ps3-and-xbox-360-apps-for-a-special-htm-511411349

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Vodafone looking at Kabel Deutschland again - paper

FRANKFURT (Reuters) - Vodafone is looking at a possible takeover of Germany's biggest cable company Kabel Deutschland again, the Wall Street Journal Deutschland reported, citing several people familiar with the matter.

In an article published on its website late on Monday, it cited the people as saying Vodafone had not yet decided whether to make an offer, or when it might make a decision.

Vodafone owns some fixed-line assets in Europe, including Germany where it offers mobile and fixed lines to private and business customers, but it has so-called quad-play services with TV, fixed and mobile calls on superfast networks only in Portugal.

Investors had feared the trend for quad-play could force Vodafone to go on a Europe-wide spending spree for fixed-line assets, and sources told Reuters in February that it was weighing a 10-billion-euro bid for Kabel Deutschland.

But analysts had expected talks to die down after Vodafone last month struck a deal with Deutsche Telekom allowing it to offer pay-TV over high-speed broadband to its German customers.

Vodafone Germany declined to comment. Kabel Deutschland declined to comment.

(Reporting by Maria Sheahan and Peter Maushagen; Editing by Mark Potter)

Source: http://news.yahoo.com/vodafone-looking-kabel-deutschland-again-paper-063027661.html

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Easy Payments WebSite Starting an Online Business from Scratch

One advantage of doing business online is that you can start from scratch without investing much money. Here is a 27 Step Action Plan to help you get started...

1. List 5 hobbies, interests or areas of expertise. If you want to start a new business, you'd better choose a subject that you like and a subject where you can show expertise. You will have more fun and you will be more competitive.

2. Brainstorm a list of keywords and phrases related to those hobbies and interests. For example, if you are going to sell small airplane collectibles, some possible keywords could be: airplanes, aeronautics, war airplanes, etc.

3. Research those keywords in Wordtracker.com to locate problem statements that have high search results and low competition. Wordtracker.com is a web page that helps you find out how many times your keywords are searched online, how popular your keywords on search engines are. Those keywords may represent problem statements. Wordtracker shows you how many people are buying traffic on those keywords and how much are they paying. You need to find popular statements with low competition.

4. Research those problem statements further to determine if you can develop a product to solve the problem stated. You may use search engines to see how many people are offering products that can help to solve those problems. If you find a popular problem and there are not many people offering solutions online, you've got it!

5. Find or create a product based on previous research for you to sell. Once you found a hungry market, you just need to find the food that your customers want and they will eat from your hands. You may find companies online that can manufacture the products for you or you may find a different way to create the product yourself. If the product is an e-book, you may write it yourself or you may hire someone else to do it.

6. Write a long copy sales letter for that product. The experience of the most important internet marketing gurus reveals that long copies sell much more than short copies. It is also recommendable that you try to sell only one product on your web site. Focus on one product unless the solution you are providing is the offer of a wide catalogue.

7. Register a domain and set up a hosting account. There are many places online where you can register a domain and set up a hosting account in minutes.

8. Register for a merchant account (to set up quickly use PayPal.com). If you don't want to register a merchant account that will allow you to take credit card payments online, go to PayPal.com and sign in. It can be a little bit more expensive, but it is a simple way to take credit card payments online very quickly.

9. Set up a simple web site using an automatic site builder or pay to have someone set it up for you. Do not try to design your own web site unless you are educated on html. Do not waste your time. Hire someone else to do it or buy automatic web site builder software. There are many of these you can buy online.

10. Set up an opt-in form on your web site to collect e-mail addresses. You need to start collecting e-mail addresses for your newsletter. The major part of your business will come from the emails that you will send to your customer list.

11. Build an extensive keyword list based on the initial list of keywords you developed. Use Overture.com. For each keyword on the initial list, Overture can help you find different combinations with other words that you may find interesting. Check the popularity of each term and write down on a spread sheet your final keyword list.

12. Submit those keywords to Overture.com to start driving traffic right away. You need to start driving some traffic immediately in order to test your web site. The best way to do that is to buy this traffic at overture.com

13. Optimize and submit your web site to organic search engines (Google, Altavista, etc...). Once you have proved that your web site works and sells, you will be ready to make the business bigger. It is then time to start working on building free traffic to your site.

14. Continue to test and tweak your web site until target conversion rate is met. Your conversion ratio should be that 1-2% of your visitors should buy from your web site, and 11% should subscribe to your newsletter. Continue testing until you get those stats.

15. Set up an affiliate program on your web site. Affiliate programs can double your business with no additional effort. Others will make the job for you. But you cannot set up an affiliate program before you are sure that your web site can produce results. If your site does not work, you will loose your affiliates and they will never come back to you again.

16. Approach complimentary web sites to sign up as affiliates to promote your product. Get in contact with people that can promote your product and ask them to be your affiliates. Just try to find your first 100 affiliates, and your affiliate list will boom alone.

17. Start publishing a monthly newsletter. You have started collecting e-mail addresses much earlier, but it is not the time to start working the newsletter until you can prove that everything else works.

18. Submit articles to related newsletters and e-zines on a regular basis. In the articles you should always have a link to your site, so that you can get more traffic and you can get more people joining to your newsletter.

19. Continue the development of a content rich web site to further increase search engine rankings. Search engines love content. You must have many web sites which are rich on your keywords and which have links to your main page. A good way to do this is to add as many articles as you can related to your business and link them to your home page.

20. Once keywords have been tested in Overture, roll out in Google Adwords. It works similar to Overture, you bid for traffic. But do not go to Google Adwords first. You must first prove your success with Overture and then go to Google Adwords.

21. Roll out tested keyword list in other major PPCs. When you are sure about your stats, and you know how much money you collect per visitor, you must buy as much traffic as you can get as far as your income per visitor is higher than your bids.

22. Create a viral e-book to generate more leads. Create a free e-book that you can promote and which sells your product or service. Give it for free, and this will bring more traffic to your web site.

23. Have an expert review and critique your web site. Even if your site works, you can always improve. Listen to others and learn from their experiences.

24. Survey your existing customers to find out what other products or services they are looking for. Once you have a big list of customers, use it to find out what other problems do they have. Try to find or create a solution for them and you will boost your sales instantaneously.

25. Create and find back-end products and market them through your e-mail list. Continue finding more products that meet your customer demands and promote them via e-mail.

26. Continue to test and tweak your web site and offers. Nothing is perfect the first time and can always be improved. It is very important that you take action, even if you make mistakes. Learn from your errors and improve your skills.

27. Repeat process to create "Multiple Streams of Income". Once your business is working on automation, then you can start the process again with a new business. Build as many businesses as you can, and reduce your risks. If one business fails, but you have another 5 working businesses, who cares about it?

If you have read up to this point, you are probably asking yourself how much it will cost to get started? The answer is very simple; it depends on how much time and money you have available to invest! If you have a lot of time, you can do everything yourself. On the other hand, if you don't have time, you will have to pay other people for building your website and/or for optimizing your site on search engines.

If you can do nothing else...just launch a web site and start promoting online...

About the author: Rachael Willis is the webmaster of http://www.infoproductscentral.com and the publisher of "The Genuine Truth" newsletter. "The Genuine Truth" newsletter is full of freebies,articles and reviews of the hottest products. If you are tired of spending money on bad products then you need "The Genuine Truth". Join us today and let me spend my money to test these products so you don't have to.

Author: Rachael Willis

Source: http://easypayments.ws/956187-Starting-an-Online-Business-from-Scratch.html

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Never forget a face? Researchers find women have better memory recall than men

June 4, 2013 ? New research from McMaster University suggests women can remember faces better than men, in part because they spend more time studying features without even knowing it, and a technique researchers say can help improve anyone's memories.

The findings help to answer long-standing questions about why some people can remember faces easily while others quickly forget someone they've just met.

"The way we move our eyes across a new individual's face affects our ability to recognize that individual later," explains Jennifer Heisz, a research fellow at the Rotman Institute at Baycrest and newly appointed assistant professor in the Department of Kinesiology at McMaster University.

She co-authored the paper with David Shore, psychology professor at McMaster and psychology graduate student Molly Pottruff.

"Our findings provide new insights into the potential mechanisms of episodic memory and the differences between the sexes. We discovered that women look more at new faces than men do, which allows them to create a richer and more superior memory," Heisz says.

Eye tracking technology was used to monitor where study participants looked -- be it eyes, nose or mouth -- while they were shown a series of randomly selected faces on a computer screen. Each face was assigned a name that participants were asked to remember.

One group was tested over the course of one day, another group tested over the course of four days.

"We found that women fixated on the features far more than men, but this strategy operates completely outside of our awareness. Individuals don't usually notice where their eyes fixate, so it's all subconscious."

The implications are exciting, she says, because it means anyone can be taught to scan more and potentially have better memory.

"The results open the possibility that changing our eye movement pattern may lead to better memory," says Shore. "Increased scanning may prove to be a simple strategy to improve face memory in the general population, especially for individuals with memory impairment like older adults."

The complete study, published in the journal Psychological Science, can be found at this link.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_health/~3/qZFujkTeHG8/130604113957.htm

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