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Association of Program Directors in Internal Medicine; Fitzgibbons JP, Bordley DR, Berkowitz LR, Miller BW, Henderson MC.Association of Program Directors in Internal Medicine, et al. Among authors: berkowitz lr.Ann Intern Med. 2006 Jun 20;144(12):920-6. doi: 10.7326/0003-4819-144-12-200606200-00010.Ann Intern Med. 2006.PMID: 16785480