title: Iron balance and iron deficiency states.
mesh_terms: D003677:Deficiency Diseases / Q000175:diagnosis / Q000209:etiology; D004386:Duodenum; D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D007413:Intestinal Mucosa; D007501:Iron / Q000378:metabolism*; D008297:Male; D011166:Porphyrins / Q000378:metabolism; D011247:Pregnancy
chemical_list: D011166:Porphyrins; D007501:Iron