Long-term Follow-up of the RTOG 9501/Intergroup phase III trial: Postoperative Concurrent Radiation Therapy and Chemotherapy in High-Risk Squamous Cell Carcinoma of the Head and Neck - Cooper, J S; Zhang, Q; Pajak, T F; Forastiere, A A; Jacobs, J; Saxman, S B; Kish, J A; Kim, H E; Cmelak, A J; Rotman, M; Lustig, R; Ensley, J F; Thorstad, W; Schultz, C J; Yom, S S; Ang, K K (Int J Radiat Oncol Biol Phys, 2012)