How many peer reviewed journals are published?
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http://snipurl.com/8h9m7
LocatorPlus can be searched at http://locatorplus.gov/
National Library of Medicine (www.nlm.nih.gov)
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You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
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