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Ferenczy A, Bergeron C, Richart RM.Ferenczy A, et al. Among authors: richart rm.Obstet Gynecol. 1989 Dec;74(6):950-4.Obstet Gynecol. 1989.PMID: 2555753
Ferenczy A, Richart RM, Wright TC.Ferenczy A, et al. Among authors: richart rm.Obstet Gynecol. 1991 Jul;78(1):118-22.Obstet Gynecol. 1991.PMID: 2047052
Ferenczy A, Bergeron C, Richart RM.Ferenczy A, et al. Among authors: richart rm.Obstet Gynecol. 1990 Jan;75(1):114-8.Obstet Gynecol. 1990.PMID: 2153274
Levine RU, Crum CP, Herman E, Silvers D, Ferenczy A, Richart RM.Levine RU, et al. Among authors: richart rm.Obstet Gynecol. 1984 Jul;64(1):16-20.Obstet Gynecol. 1984.PMID: 6330630