PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Hematopoietic: WBC at least 3,000 Platelets at least 100,000 Hct at least 30% Hepatic: Bilirubin less than 2.0 mg/dl PT normal PTT normal Renal: Creatinine less than 2.0 mg/dl Cardiovascular: No MI within 6 months No CHF requiring medication No arrhythmia requiring medication Pulmonary: Reasonable respiratory reserve required No requirement for supplemental oxygen No dyspnea at rest Other: No chronic underlying immunodeficiency disease No HIV positivity No pregnant patients (negative pregnancy test required) Adequate birth control required of fertile patients