Cancer in the elderly.
D000368:Aged; D003221:Confusion; D006299:Health Services for the Aged; D006801:Humans; D009369:Neoplasms / Q000451:nursing* / Q000503:physiopathology / Q000628:therapy; D009723:Nurse-Patient Relations; D009747:Nutritional Physiological Phenomena; D009859:Oncology Nursing; D014481:United States