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Lanfear DE, McLeod HL.Lanfear DE, et al. Among authors: mcleod hl.Am Fam Physician. 2007 Oct 15;76(8):1179-82.Am Fam Physician. 2007.PMID: 17990842Free article.Review.
Lanfear DE, Jones PG, Marsh S, Cresci S, Spertus JA, McLeod HL.Lanfear DE, et al. Among authors: mcleod hl.Am Heart J. 2007 Sep;154(3):561-6. doi: 10.1016/j.ahj.2007.04.059.Am Heart J. 2007.PMID: 17719307