title: Physical work capacity in blood donors.
mesh_terms: D000328:Adult; D001782:Blood Donors; D001853:Bone Marrow / Q000378:metabolism; D006339:Heart Rate; D006454:Hemoglobins; D006485:Hemosiderin / Q000378:metabolism; D006801:Humans; D007501:Iron / Q000097:blood* / Q000378:metabolism / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D010809:Physical Fitness; D010919:Placebos; D014168:Transferrin / Q000378:metabolism
chemical_list: D006454:Hemoglobins; D010919:Placebos; D014168:Transferrin; D006485:Hemosiderin; D007501:Iron