Anaemia in pregnancy and the puerperium--a two year prospective survey.
D000740:Anemia / Q000453:epidemiology* / Q000503:physiopathology; D044466:Asian People; D005260:Female; D005865:Gestational Age; D006801:Humans; D049590:Postpartum Period; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic; D011446:Prospective Studies; D012846:Singapore