Iron.
D000747:Anemia, Hypochromic / Q000378:metabolism; D002859:Chromium Isotopes; D005243:Feces / Q000032:analysis; D005260:Female; D007501:Iron / Q000032:analysis / Q000378:metabolism*; D007503:Iron Isotopes; D008593:Menopause; D009751:Nutritional Requirements
D002859:Chromium Isotopes; D007503:Iron Isotopes; D007501:Iron