1. Elkayam U, Gleicher N, Cardiovascular physiology of pregnancy, in Elkayam U, Gleicher N (eds): Cardiac problems in pregnancy diagnosis and management of maternal and fetal disease. New York, Alan R Liss, 1982, pp 5–26
2. Howard BK, Goodson JH, Mengert WF: Supine hypotensive syndrome in late pregnancy. Obstet. Gynecol 1: 371–377, 1953
3. Kjeldsen J: Hemodynamic investigations during labor and delivery. Acta Obstet Gynecol Scand [Suppl] 89: 20–252, 1979
4. Perloff JK: Pregnancy and cardiovascular disease, in Braunwald E (ed): Heart Disease, ed 2 Philadelphia, WB Saunders, 1984, pp 1763–1781
5. Hytten EF, Thomson AM, Taggart N: Total body water in normal pregnancy. J Obstet Gynaecol Br Commonw 73: 553 - 561, 1966