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Butterfield CR, Shockley M, San Miguel G, Rosa C.Butterfield CR, et al. Among authors: rosa c.Obstet Gynecol. 1990 Jul;76(1):25-7.Obstet Gynecol. 1990.PMID: 2359566
Silver MM, Miles P, Rosa C.Silver MM, et al. Among authors: rosa c.Obstet Gynecol. 1991 Nov;78(5 Pt 1):828-30.Obstet Gynecol. 1991.PMID: 1923207Clinical Trial.