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Bienstock JL, Tzou WS, Martin SA, Fox HE.Bienstock JL, et al.Obstet Gynecol. 2000 Dec;96(6):1011-3. doi: 10.1016/s0029-7844(00)01058-9.Obstet Gynecol. 2000.PMID: 11084195Free article.