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Johns Hopkins University School of Medicine.
Harper GM, Leff B, Thomas P, Burton J. Harper GM, et al. Acad Med. 2004 Jul;79(7 Suppl):S70-1. doi: 10.1097/00001888-200407001-00018. Acad Med. 2004. PMID: 15240220 No abstract available.
Educational epidemiology.
Harper GM, Leff B, Thomas PA. Harper GM, et al. JAMA. 2004 Dec 22;292(24):2970; author reply 2970-1. doi: 10.1001/jama.292.24.2970-a. JAMA. 2004. PMID: 15613652 No abstract available.
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