S206: OBINUTUZUMAB PLUS CHEMOTHERAPY DEMONSTRATES LONG-TERM BENEFIT OVER RITUXIMAB PLUS CHEMOTHERAPY IN PATIENTS WITH PREVIOUSLY UNTREATED FOLLICULAR LYMPHOMA: FINAL ANALYSIS OF THE GALLIUM STUDY. (23rd June 2022) - Townsend, W.; Hiddemann, W.; Buske, C.; Cartron, G.; Cunningham, D.; Dyer, M. J.; Gribben, J.; Phillips, E.; Dreyling, M.; Seymour, J. F.; Grigg, A.; Lin, T.-Y.; et al.