4Persson B,Hanson U.Fetal size at birth in relation to quality of bfood glucose control in pregnancies complicated by pregestational diabetes mellitus[J].Br,J Obs Gyn,1996,103:427-433.
5Keen CL,Zidenberg-Cherr S.Should vitamin-mineral supplements be recommended for all women with childbearing potential[J].Am J clin Nutr 1994,59(suppl):532S-539S.