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Magann EF, Martin JN Jr, Isaacs JD, Perry KG Jr, Martin RW, Meydrech EF.Magann EF, et al. Among authors: meydrech ef.Obstet Gynecol. 1993 Apr;81(4):502-6.Obstet Gynecol. 1993.PMID: 8459956Clinical Trial.
Martin JN Jr, Perry KG Jr, Roberts WE, Meydrech EF.Martin JN Jr, et al. Among authors: meydrech ef.Am J Obstet Gynecol. 1997 Jul;177(1):144-8. doi: 10.1016/s0002-9378(97)70453-8.Am J Obstet Gynecol. 1997.PMID: 9240598Review.