American College of Physicians, Annals of Internal Medicine, 2(157), p. 148
DOI: 10.7326/0003-4819-157-2-201207170-00018
American College of Physicians, Annals of Internal Medicine, 2(157), p. 148
DOI: 10.7326/0003-4819-157-2-201207170-00019
American College of Physicians, Annals of Internal Medicine, 2(157), p. 149
DOI: 10.7326/0003-4819-157-2-201207170-00020
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