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Qaseem A, Humphrey LL, Chou R, Snow V, Shekelle P; Clinical Guidelines Committee of the American College of Physicians.Qaseem A, et al. Among authors: chou r.Ann Intern Med. 2011 Feb 15;154(4):260-7. doi: 10.7326/0003-4819-154-4-201102150-00007.Ann Intern Med. 2011.PMID: 21320941Free article.
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