eighty-seven previously untreated patients with pathologic stage ia , ii ( a or b ) , or iiia hodgkin 's disease were randomized over a 48-month period to receive either megavoltage extended field radiotherapy alone or megavoltage radiotherapy limited to involved lymph node sites ( including at least an upper mantle field ) followed by combination chemotherapy with nitrogen mustard , vincristine , prednisone , and procarbazine ( mopp ) .
C0042679
vincristine
C0066789
mopp