Abrams, B, Newman, V, Key, T, Parker, J (1989): Maternal weight gain and preterm delivery. Obstet Gynecol
ACOG Technical Bulletin: Management of preeclampsia. No. 91, February (1986).
Benirshke, K, Drescoll, S (1974): Pathology of the Human Placenta. New York: Springer-Verlag, pp. 325–327.
Bingham, AW (1932): The prevention of obstetric complications by diet and exercise. Am J Obstet Gynecol
Blickstein, I, Shoham-Schwartz, Z, Lancet, M, Borenstein, R (1987): Characterization of the growth-discordant twin. Obstet Gynecol
Brown, JE, Schloesser, PT (1990): Prepregnancy weight status, prenatal weight gain, and the outcome of term twin gestations. Amer J Obstet Gynecol
Hannah, CR (1925): Weight during pregnancy with observations and statistics. Am J Obstet Gynecol
Hediger, ML, Scholl, TO, Belsky, DH, Ances, IG, Salmon, RW (1989): Patterns of weight gain in adolescent pregnancy: Effects on birth weight and preterm delivery. Obstet Gynecol
Long, PA, Oats, JN (1987): Preeclampsia in twin pregnancy. Severity and pathogenesis. Austr N Z J Obstet Gynecol
Luke, B, Witter, FR, Abbey, H, Feng, T, Namnoun, AB, Johnson, TRB (1991): Gestational age-specific birthweights of twins versus singletons. Acta Genet Med Gemellol
Mabie, BC, Sibai, BM (1987): Hypertensive states of pregnancy. In Pernoll, ML, Benson, RC (eds): Current Obstetric & Gynecol Diagnosi & Treatment, (6th ed) Norwalk, Conn: Appleton & Lange, pp 340–352.
McMullan, PF, Marivate, M (1984): Pregnancy-induced hypertension in twin pregnancy. Br J Obstet Gynecol
O’Brien, WF, Knuppel, RA, Scerbo, JC, Rattan, PK (1986): Birth weight in twins: An analysis of discordancy and growth retardation. Obstet Gynecol
Pederson, AL, Worthington-Roberts, B, Hickok, DE (1989): Weight gain patterns during twin gestation. J Am Diet Assoc
Scholl, TO, Hediger, ML, Ances, IG, Belsky, DH, Salmon, RW (1990): Weight gain during pregnancy in adolescence: Predictive ability of early weight gain. Obstet Gynecol
Sheehan, HL, Lynch, JB (1973): Pathology of Toxemia of Pregnancy. Baltimore: Williams & Wilkins, pp. 678–679.
Stander, HJ, Pastore, JB (1940): Weight changes during pregnancy and puerperium. Am J Obstet Gynecol
Stevens-Simon, C, McAnarney, ER, Coulter, MP (1986): How accurately do pregnant adolescents estimate their weight prior to pregnancy
J Adoles Hlth Care
Stewart, AL (1982): The reliability and validity of self-reported weight and height. J Chron Dis
Stouffer, A, Burns, WJ, Burns, KA, Melamed, J, Herman, CE (1988): Early developmental progress of preterm twins discordant for birth weight and risk. Acta Genet Med Gemellol
Tanner, JM (1978): Fetus Into Man. Boston, Massachusetts: Harvard University Press, pp. 40–42.
Tompkins, WT, Wiehl, DG, Mitchell, McN R (1955): The underweight patient as an increased obstetric hazard. Am J Obstet Gynecol
Young, M (1981): Placental factors and fetal nutrition. Am J Clin Nutr
Villar, J, Belizan, JM (1982): The timing factor in the pathophysiology of the intrauterine growth retardation syndrome. Obstet Gynecol Survey