1. Tratamento de anemia ferropriva da gravidez pelo citrato de cálcio ferroso;ALMEIDA P. A. M. de;Rev. Ginec. Obstet.,1973
2. Serum levels of folic acid, vitamin B12 and iron in anemia of pregnancy;BENJAMIN F.;Amer. J. Gynec.,1966
3. Evolution des valures hematologiques normales ches la femme enceinte;BRAT T.;Bull Soc. roy belge Gynèc. Obstét.,1964
4. Iron and folate nutrition in a group of private obstetrical patients;CANTLIE G. S. D.;Amer. J. clin. Nutr.,1971
5. Iron deficiency and hidremia in normal pregnancy;DELEEUW N. K. M.;Medicine,1966