PATIENT CHARACTERISTICS: Age: 18 and over Performance Status: Karnofsky 60-100% Hematopoietic: Hematocrit greater than 29% Absolute neutrophil count greater than 1,500/mm3 Platelet count greater than 125,000/mm3 Hepatic: SGOT less than 1.5 times upper limit of normal (ULN) Bilirubin less than 1.5 times ULN Renal: Creatinine less than 1.5 mg/dL BUN less than 25 mg/dL Pulmonary: DLCO at least 60% Other: Not pregnant Fertile patients must use effective contraception