1. Factors associated with postpartum hemorrhagic with vaginal birth;Combs;Obstet. Gynecol.,1991
2. Causes of maternal mortality in the United States;Kaunitz;Obstet. Gynecol.,1985
3. Early and late postpartum hemorrhage;Visscher,1991
4. Postpartum extraperitoneal pelvic hematoma;Yamashita;Am. J. Radiol.,1993
5. Maternal mortality;Adetoro;Int. J. Gynecol. Obstet.,1987