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Poirier NC, Van Arsdell GS, Brindle M, Thyagarajan GK, Coles JG, Black MD, Freedom RM, Williams WG.Poirier NC, et al. Among authors: black md.Ann Thorac Surg. 1999 Dec;68(6):2293-7. doi: 10.1016/s0003-4975(99)01144-3.Ann Thorac Surg. 1999.PMID: 10617019
Sim EK, Black MD, Smallhorn J, Williams WG.Sim EK, et al. Among authors: black md.Ann Thorac Surg. 1995 Nov;60(5):1399-400. doi: 10.1016/0003-4975(95)00495-7.Ann Thorac Surg. 1995.PMID: 8526635
Dyamenahalli U, Black MD, Boutin C, Gow RM, Freedom RM.Dyamenahalli U, et al. Among authors: black md.Ann Thorac Surg. 1998 Mar;65(3):835-7. doi: 10.1016/s0003-4975(98)00004-6.Ann Thorac Surg. 1998.PMID: 9527228