- Arm B (Stanford V): Patients receive Stanford V chemotherapy comprising doxorubicin (25 mg/m²) and vinblastine (6 mg/m²) IV on day 1 of weeks 1, 3, 5, 7, 9, and 11; vincristine (1.4 mg/m²) and bleomycin (5 u/m²) IV on day 1 of weeks 2, 4, 6, 8, 10, and 12; mechlorethamine (6 mg/m²) IV on day 1 of weeks 1, 5, and 9 (if mechlorethamine is unavailable, may substitute with cyclophosphamide [375 mg/m²] IV); etoposide (60 mg/m²) IV on days 1 and 2 of weeks 3, 7, and 11; and oral prednisone (40 mg/m²) every other day of weeks 1-9 followed by a taper. All patients with bulky disease receive radiotherapy 2-3 weeks after completion of chemotherapy.