1. Risk factors for acidemia at birth;Herbst;Obstet Gynecol,1997
2. Reduction of perinatal mortality and morbidity in breech delivery through routine use of cesarean section;Wright;Obstet Gynecol,1959
3. Breech delivery at term: A critical review of the literature;Cheng;Obstet Gynecol,1993
4. A meta-analysis of infant outcomes after breech delivery;Gifford;Obstet Gynecol,1995