Phase II study of ABVd therapy for newly diagnosed clinical stage II-IV Hodgkin lymphoma: Japan Clinical Oncology Group study (JCOG 9305) Michinori OguraKuniaki ItohTomohiro KinoshitaHaruhiko FukudaTakeaki Takenaka • Tomoko OhtsuYoshitoyo KagamiKensei TobinaiMasataka OkamotoHideki Asaoku • Tsuneo SasakiChikara MikuniMasami HiranoTakaaki ChouKazunori OhnishiHitoshi Ohno • Kaori NasuKenichi OkabeShuichi IkedaShigeo NakamuraTomomitsu HottaMasanori Shimoyama