[Blood donors' needs of iron. II].
D001782:Blood Donors; D005500:Follow-Up Studies; D006801:Humans; D007501:Iron / Q000008:administration & dosage / Q000378:metabolism*; D010809:Physical Fitness; D010919:Placebos
D010919:Placebos; D007501:Iron
Järnbehov hos blodgivare. II.