title: Trace metals and immune function in the elderly.
mesh_terms: D000368:Aged; D000818:Animals; D003300:Copper / Q000172:deficiency; D006801:Humans; D008275:Magnesium Deficiency / Q000178:diet therapy; D008345:Manganese / Q000172:deficiency; D009751:Nutritional Requirements; D014131:Trace Elements / Q000172:deficiency / Q000276:immunology*; D015032:Zinc / Q000172:deficiency
chemical_list: D014131:Trace Elements; D008345:Manganese; D003300:Copper; D015032:Zinc