9. Patients must have adequate bone marrow function (ANC> or = 1,500/mm3 and platelet count of > or = 100,000/mm3), adequate liver function (SGPT and alkaline phosphatase = or <2 times normal, bilirubin = or <1.5 mg%), and adequate renal function (BUN or creatinine = or <1.5 times institutional normal) prior to starting therapy.