1. Caesarean section twice in one person;Coakley;JAMA,1896
2. NIH consensus development statement on cesarean childbirth;National Institutes of Health;Obstet Gynecol,1981
3. Vaginal delivery after a previous cesarean birth;American College of Obstetricians and Gynecologists Committee on Obstetric Practice,1997
4. Transperitonealer cervikaler kaiserschnitt;Kroenig,1912
5. History and development of cesarean operation;Gabert;Obstet Gynecol Clin North Am,1988