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Torroni A, Schurr TG, Cabell MF, Brown MD, Neel JV, Larsen M, Smith DG, Vullo CM, Wallace DC.Torroni A, et al. Among authors: schurr tg.Am J Hum Genet. 1993 Sep;53(3):563-90.Am J Hum Genet. 1993.PMID: 7688932Free PMC article.