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2. The characteristics and perils of breech presentation;Brenner;Amer. J. Obstet. Gynec.,1974
3. Delivery of the premature breech;Cruikshank;Obstet. Gynec.,1977
4. Perinatal mortality and morbidity in breech presentation;De Crespigny;Obstet. Gynec.,1979
5. A paired controlled study of vaginal and abdominal delivery of the low birth weight breech fetus;Duenhoelter;Obstet. Gynec.,1979