1. National hospital discharge survey, 1965–1989;National Center for Health Statistics,1990
2. The cesarean future;Placek;Am Demogr,1987
3. The frequency of complications in cesarean and noncesarean deliveries, 1970 and 1978;Placek;Public Health Rep,1983
4. Cesarean birth and trial of labor;Klein;Female Patient,1984
5. Cesarean section-related maternal mortality in Massachusetts, 1954–1985;Sachs;Obstet Gynecol,1988