American College of Physicians, Annals of Internal Medicine, 3(155), p. 203
DOI: 10.7326/0003-4819-155-3-201108020-00018
American College of Physicians, Annals of Internal Medicine, 3(155), p. 203
DOI: 10.7326/0003-4819-155-3-201108020-00019
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