References
- Wilson M, Morganti AA, Zervoudakis I, et al. Blood pressure, the renin-aldosterone system and sex steroids throughout normal pregnancy. Am J Med 1980;68:97–104
- Macdonald-Wallis C, Lawlor DA, Fraser A, et al. Blood pressure changes in normotensive, gestational hypertensive, preeclamptic, and essential hypertensive patients. Hypertension 2012;59:1241–8
- Martin JA, Hamilton BE, Osterman MJK. Three decades of twin births in the United States, 1980–2009. NCHS data brief, no 80. Hyattsville, MD: National Center for Health Statistics; 2012
- American College of Obstetricians and Gynecologists: Multiple Gestation: Complicated Twin, Triplet, and High-Order Multifetal Pregnancy. ACOG Practice Bulletin 56. Washington, DC: ACOG; 2004
- Sibai BM, Hauth J, Caritis S, et al. Hypertensive disorders in twin versus singleton gestations. National Institute of Child Health and Human Development Network of Maternal-Fetal Medicine Units. Am J Obstet Gynecol 2000;182:938–42
- Krotz S, Fajardo J, Ghandi S, et al. Hypertensive disease in twin pregnancies: a review. Twin Res 2002;5:8–14
- Kametas NA, McAuliffe F, Krampl E, et al. Maternal cardiac function in twin pregnancy. Obstet Gynecol 2003;102:806–15
- Kuleva M, Youssef A, Maroni E, et al. Maternal cardiac function in normal twin pregnancy: a longitudinal study. Ultrasound Obstet Gynecol 2011;38:575–80
- American College of Obstetricians and Gynecologists: Chronic Hypertension in Pregnancy. ACOG Practice Bulletin 125. Washington, DC: ACOG; 2012
- American College of Obstetricians and Gynecologists: Diagnosis and Management of Preeclampsia. ACOG Practice Bulletin 33. Washington, DC: ACOG; 2002
- Report of the National High Blood Pressure Education Program Working Group on High Blood Pressure in Pregnancy. Am J Obstet Gynecol 2000;183:S1–22