Vitamins and trace elements in cancer patients.
D006801:Humans; D009369:Neoplasms / Q000150:complications / Q000378:metabolism* / Q000628:therapy; D010288:Parenteral Nutrition; D014131:Trace Elements / Q000097:blood*; D014802:Vitamin A Deficiency / Q000209:etiology / Q000378:metabolism*
D014131:Trace Elements