1. Fetal injury due to the vacuum extractor;Aguero;Obstet. Gynecol.,1962
2. Effects of caudal anesthesia on uterine activity;Alexander;Obstet. Gynecol.,1966
3. Current role of mid-forceps operations;Bowes;Clin. Obstet. Gynecol.,1980
4. Caudal anesthesia for vaginal delivery;Bush;Anesthesia,1959
5. Perinatal problems, 2nd report. British Perinatal Mortality Survey;Butler,1969