1. Hypertensive disorders in pregnancy;Chesley,1978
2. Williams obstetrics;Pritchard,1980
3. Pathology of toxaemia of pregnancy;Sheehan,1973
4. Maternal mortality due to acute toxemia;Hibbard;Obstet Gynecol,1973
5. Maternal mortality rates in eclampsia;Lopez-Llera;Am J Obstet Gynecol,1976