title: Haemoglobin levels in pregnancy; the effect of the rationing scheme and routine administration of iron.
mesh_terms: D002338:Carotenoids; D005260:Female; D006454:Hemoglobins; D006801:Humans; D007501:Iron; D011247:Pregnancy / Q000097:blood; D014801:Vitamin A; D014815:Vitamins
chemical_list: D006454:Hemoglobins; D014815:Vitamins; D014801:Vitamin A; D002338:Carotenoids; D007501:Iron
keywords: CAROTENE; HEMOGLOBIN AND COMPOUNDS/in pregnancy; PREGNANCY/blood; VITAMINS/A