BENNER, S. E.; PAJAK, T. F.; STETZ, J.; LIPPMAN, S. M.; HONG, W. K.; SCHANTZ, S. P.; GALLAGHER, M. J.; SHENOUDA, G.; BENNER S. E.; The University of North Carolina; PAJAK T. F.; Radiation Therapy Oncology Group Statistical Unit; STETZ J.; Radiation Therapy Oncology Group Statistical Unit; LIPPMAN S. M.; The University of Texas M. D. Anderson Cancer Center; HONG W. K.; The University of Texas M. D. Anderson Cancer Center; SCHANTZ S. P.; Memorial Sloan-Kettering Cancer Center; GALLAGHER M. J.;; SHENOUDA G.; McGill University