Folic acid deficiency in pregnancy.
D000022:Abortion, Spontaneous; D000037:Abruptio Placentae; D004912:Erythrocytes / Q000032:analysis; D005260:Female; D005494:Folic Acid Deficiency / Q000097:blood* / Q000453:epidemiology*; D006801:Humans; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000209:etiology*; D014806:Vitamin B 12 Deficiency / Q000097:blood* / Q000453:epidemiology*