PATIENT CHARACTERISTICS: Age: Not specified Performance status: SWOG 0-2 Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: HIV negative Not pregnant or nursing Fertile patients must use effective contraception No other prior malignancy within the past 5 years, except: Adequately treated basal cell or squamous cell skin cancer Adequately treated stage I or II cancer Carcinoma in situ of the cervix