1. Trauma in pregnancy;Patterson;Clin Obstet Gynecol,1984
2. Maternal mortality in Iowa from 1952 to 1986;Varner;Surg Obstet Gynecol,1989
3. Trauma in pregnancy,1985
4. Late abruptio placentae in trauma patients: implications for monitoring;Higgins;Obstet Gynecol,1984
5. Diagnosis and early management;Buchsbaum,1979