[1] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] RTOG Stat Ctr, Philadelphia, PA USA
[3] Ctr Hosp Univ Montreal, Montreal, PQ, Canada
[4] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[5] Thomas Jefferson Univ Hosp, Philadelphia, PA 19107 USA
[6] North Shore Long Isl Jewish Hlth Syst, New Hyde Pk, NY USA
[7] Ohio State Univ, Columbus, OH 43210 USA
[8] Univ Calif San Francisco, San Francisco, CA 94143 USA
[9] Univ Chicago, Canc Res Ctr, Chicago, IL 60637 USA
[10] Wayne State Univ, Karmanos Canc Inst, Detroit, MI USA
[11] Washington Univ, Sch Med, St Louis, MO USA
[12] Univ S Florida, Coll Med, H Lee Moffitt Canc Ctr & Res Inst, Tampa, FL 33612 USA
[13] Emory Healthcare, Emory Clin, Atlanta, GA USA
[14] Univ Louisville, Sch Med, Louisville, KY 40292 USA
[15] Thomas Jefferson Univ, Philadelphia, PA 19107 USA