Estimated overall survival according to treatment arms. Broken line indicates MOPP/ABV×8 (patients at risk, n = 92; deaths, n = 21; 10-year estimate, 78%); solid black line, ABVPP×8 (patients at risk, n = 116; deaths, n = 11; 10-year estimate, 90%); light gray line, MOPP/ABV×6 with RT (patients at risk, n = 114; deaths, n = 18; 10-year estimate, 82%); and dark gray line, ABVPP×6 with RT (patients at risk, n = 96; deaths, n = 23; 10-year estimate, 77%).