Preeclampsia is the most common hypertensive disease of pregnancy, affecting 5-8% of pregnancies (Saftlas et al., 1990) and accounting for nearly 18% of maternal deaths (ACOG, 2002) in the United States. Little change has been noted in the incidence of this disease in the United States during the national data-collection periods of 19931997 and 2001-2005 (Berg et al., 2009). Preeclampsia is als...
