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This is Scientific American 60-Second Health. I'm Dina Fine Maron. Got a minute?

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Feeling a bit sick?

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Maybe you checked symptoms on Wikipedia before seeing a doctor.

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And maybe your doctor checked Wikipedia before seeing you.

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Up to 70 percent of physicians and medical students admit to using Wikipedia as a reference, too.

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But Wikipedia can be shockingly wrong.

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Researchers who compared peer-reviewed articles to the Wikipedia pages for the 10 most costly medical conditions in the U.S.

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including heart disease, back pain and osteoarthritis, discovered incorrect information on 9 out of 10 pages.

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Only information on concussions appeared to be accurate.

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The study is in the Journal of the American Osteopathic Association.

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Earlier research suggested that Wikipedia is roughly comparable to peer-reviewed sources.

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A study in the journal Nature in 2005 found Wikipedia was about as accurate as the Encyclopedia Britannica, even about science topics.

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But that analysis looked only at 42 entries among the millions on Wikipedia.

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Since then the site has exploded, now including tens of millions of entries.

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The new results suggest we should all take online info with a grain of salt.

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Thanks for the minute, for Scientific American 60-Second Health. I'm Dina Fine Maron.

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