- Compare 6 courses of doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) vs 4 courses of ABVD vs 4 courses of cyclophosphamide, doxorubicin, vincristine, bleomycin, etoposide, procarbazine, and prednisone (BEACOPP) followed by IF-RT, with respect to overall survival and late treatment-related toxicity, in patients with supradiaphragmatic Hodgkin's lymphoma and unfavorable prognosis. (Unfavorable prognosis group [group 2] closed to accrual as of 9/2002.) (Favorable prognosis group [group 1] closed to accrual as of 4/28/04.)