1. Draft Report of the Task Force on Cesarean Childbirth;National Institutes of Health,1980
2. Vaginal birth after cesarean (VBAC) in the 1980s;Placek;Am. J. publ. Hlth,1988
3. Cesarean rate increases in 1985;Placek;Am. J. publ. Hlth,1987
4. One-fifth of 1983 US births by cesarean section;Taffel;Am. J. publ. Hlth,1985
5. Guidelines for Vaginal Birth After a Previous Cesarean Birth;American College of Obstetrics & Gynecology,1984