1. Ulysses;Joyce,1961
2. Correlation of decrease in perinatal mortality and increase in cesarean section rates;O'Driscoll;Obstet Gynecol,1983
3. Cesarean section;Danforth;JAMA,1985
4. High cesarean section rate: a new perspective;Porreco;Obstet Gynecol,1985
5. Active management of labor as an alternative to cesarean section for dystocia;O'Driscoll;Obstet Gynecol,1984