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Sawaya GF, Kulasingam S, Denberg TD, Qaseem A; Clinical Guidelines Committee of American College of Physicians.Sawaya GF, et al. Among authors: kulasingam s.Ann Intern Med. 2015 Jun 16;162(12):851-9. doi: 10.7326/M14-2426.Ann Intern Med. 2015.PMID: 25928075Free article.