1. ACOG Practice Bulletin No. 202: Gestational hypertension and preeclampsia;American College of Obstetricians and Gynecologists’ Committee on Practice Bulletins—Obstetrics;Obstet Gynecol.,2019
2. Pregnancy-related mortality in the united states, 1987–1990
3. The morbidity and mortality of pregnancy: Still risky business;Grimes DA;Am J Obstet Gynecol.,1994
4. Causes of maternal mortality in the United States;Kaunitz AM;Obstet Gynecol.,1985