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2. National Center for Health Statistics. Maternal Weight Gain and the Outcome of Pregnancy, United States, 1980. Vital and Health Statistics, Series 21, No. 44. DHHS Publ. No. (PHS) 86-1922, 1986
3. Weight gain and the outcome of pregnancy;Naeye;Am J Obstet Gynecol,1979
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5. American Academy of Pediatrics and the American College of Obstetricians and Gynecologists: Guidelines for Perinatal Care,1983