PATIENT CHARACTERISTICS: Age: Not specified Performance status: ECOG 0-2 Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Pulmonary: FEV1 at least 1.0 L or at least 50% of predicted Other: No significant comorbid medical or psychiatric condition No other active malignancy other than nonmelanomatous skin cancer