Two weeks ago, Dr. James Heilman discovered something strange. The Canadian emergency room physician and avid Wikipedia contributor noticed that DrugBank, an online database for drug information, was copying text directly from Wikipedia. Although Heilman considers Wikipedia’s medical content to be of surprisingly good quality, he was concerned—because he didn’t just find DrugBank copying and citing Wikipedia; he had also found several examples of Wikipedia likewisecopying and citing DrugBank.

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