Prophylactic iron supplementation for underprivileged school boys. I. Two levels of dosing and efficacy of teacher-distributions.
D000293:Adolescent; D000747:Anemia, Hypochromic / Q000517:prevention & control*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007194:India; D007501:Iron / Q000008:administration & dosage* / Q000627:therapeutic use; D008297:Male; D010919:Placebos; D012959:Socioeconomic Factors; D013663:Teaching
D010919:Placebos; D007501:Iron