[1] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] Univ Pittsburgh, Inst Eye & Ear, Med Ctr, Dept Otolaryngol, Pittsburgh, PA 15213 USA
[3] NRG Oncol, Philadelphia, PA USA
[4] Stanford, Palo Alto, CA USA
[5] Univ Calif San Diego, Moores Canc Ctr, Dept Radiat Oncol, La Jolla, CA USA
[6] Northwell Hlth, New York, NY USA
[7] Univ Calif San Diego, La Jolla, CA 92093 USA
[8] Boston Med Ctr, Boston, MA USA
[9] Stanford Univ, Dept Pathol, Stanford, CA 94305 USA
[10] UCSF, San Francisco, CA USA
[11] UPMC Hillman Canc Ctr, Dept Radiat Oncol, Pittsburgh, PA USA
[12] UPMC Hillman Canc Ctr, Dept Med Oncol, Pittsburgh, PA USA
[13] Ohio State Univ, Columbus, OH 43210 USA
[14] Inova Comprehens Canc & Res Inst, Falls Church, VA USA
[15] Univ Hosp Cleveland, Seidman Canc Ctr, Radiat Oncol, Cleveland, OH 44106 USA
[16] Emory Univ, Winship Canc Inst, Dept Radiat Oncol, Atlanta, GA 30322 USA
[17] Stanford Univ, Sch Med, Dept Radiat Oncol, Stanford, CA 94305 USA