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Callahan CM, Gramelspacher GP.Callahan CM, et al. Among authors: gramelspacher gp.J Gen Intern Med. 2004 Oct;19(10):1066-7. doi: 10.1111/j.1525-1497.2004.40701.x.J Gen Intern Med. 2004.PMID: 15482562Free PMC article.No abstract available.