1. Maternal nutrition and the course of pregnancy,1970
2. Nutrition During Pregnancy,1990
3. Haas JD. Weight gain in pregnancy. In: Krasovec K, Anderson MA, eds. Maternal Nutrition and Pregnancy Outcomes. Scientific Publication No. 529. Washington, DC: Pan American Health Organization; 1991;29-58.
4. A WHO collaborative study of maternal anthropometry and pregnancy outcomes;Kelly;Int J Gynecol Obstet.,1996
5. Maternal anthropometry and pregnancy outcome, a who collaborative study. The Bulletin of WHO. Geneva: World Health Organization; 1995:98.