TEST PROCEDURES Subjects will be given one of three concentrations of Mitomycin C (MMC) (10 mg in 20 mL, 20 mg in 20 ml or 40 mg in 20 ml) for 30 minutes followed by a 10 minute washout period. Followed by three concentrations of BCG including ¼ strength, ½ strength, and full strength for 2 hours. Dose escalation will take place among subsequent patients and not within each patient.