1. Report of the national high blood pressure education program working group on high blood pressure in pregnancy. Am J Obstet Gynecol. 200; 183: S1–S22
2. Weinstein L (1982) Syndrome of hemolysis, elevated liver enzymes, and low platelet count: a severe consequence of hypertension in pregnancy. Am J Obstet Gynecol 142:159–167
3. Canada S (1997) Causes of death 1993, 1994, 1995, 1996, 1997. Ottawa: Health Statistics Division
4. Roberts J (1998) Pregnancy related hypertension. In: Creasy R, Resnik R (eds) Maternal Fetal Medicine. WB Saunders, Philiadelphia
5. Frederick IO, Rudra CB, Miller RS, Foster JC, Williams MA (2006) Adult weight change, weight cycling, and prepregnancy obesity in relation to risk of preeclampsia. Epidemiology 17:428–434