1. Conservatism in obstetrics;Cragin;NY Med J,1916
2. National Institutes of Health Cesarean Childbirth: Report of a Consensus Development Conference Bethesda, Maryland US Department of Health and Human Services, Public Health Service
3. Once a cesarean, always a controversy;Flamm;Obstet Gynecol,1997
4. Vaginal birth after cesarean (VBAC) in the 1980s;Placek;Am J Public Health,1988