title: Performance status and comorbidity in elderly cancer patients compared with young patients with neoplasia and elderly patients without neoplastic conditions.
authors: M G
authors: MG
authors: Rikkert
authors: A M
authors: AM
authors: Diepstraten
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D006801:Humans; D017567:Karnofsky Performance Status; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications* / Q000503:physiopathology*; D012107:Research Design