Nutrition and immunity.
D000368:Aged; D000375:Aging / Q000276:immunology; D000886:Anthropometry; D001361:Avitaminosis / Q000276:immunology; D002648:Child; D006801:Humans; D007109:Immunity; D007230:Infant, Low Birth Weight / Q000276:immunology; D007231:Infant, Newborn; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena; D011502:Protein-Energy Malnutrition / Q000276:immunology; D014131:Trace Elements / Q000172:deficiency
D014131:Trace Elements