Occult blood loss in iron deficiency anemia in children.
D000747:Anemia, Hypochromic / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis; D006801:Humans; D007501:Iron / Q000627:therapeutic use*; D009780:Occult Blood
D007501:Iron