<qa>  What was the name of the group that suggested an early intensification of chemotherapy with BEACOPFrom January 2006 GITIL Gruppo Italiano Terapie Innovative nei Linfomi suggested an early intensification of chemotherapy with BEACOPP Bleomycin, Etoposide, Adriamycin doxorubicin, Cyclophosphamide, Oncovin vincristine, Procarbazine, and Prednisone4 escalated 4 baseline cycles for all the HL patients with a positive PET-2 after 2 ABVD courses. The investigators retrospectively recorded and analyzed these data in order to evaluate if this strategy could be of benefit for this subset of patients. 