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Clevenger-Hoeft M, Syrop CH, Stovall DW, Van Voorhis BJ.Clevenger-Hoeft M, et al. Among authors: stovall dw.Obstet Gynecol. 1999 Oct;94(4):516-20. doi: 10.1016/s0029-7844(99)00345-2.Obstet Gynecol. 1999.PMID: 10511351