[1] Washington Univ, Sch Med, Dept Radiat Oncol, St Louis, MO USA
[2] Johns Hopkins Univ, Sch Med, Div Biostat & Bioinformat, Baltimore, MD USA
[3] Univ Texas MD Anderson Canc Ctr, Dept Radiat Oncol, Houston, TX 77030 USA
[4] Med Oncol Hematol Consultants, Philadelphia, PA USA
[5] Univ Texas MD Anderson Canc Ctr, Thorac Med Oncol, Houston, TX 77030 USA
[6] Mayo Clin Arizona, Phoenix, AZ USA
[7] SUNY Upstate Med Univ, Syracuse, NY 13210 USA
[8] Univ S Alabama, Mobile, AL USA
[9] H Lee Moffitt Canc Ctr & Res Inst, Tampa, FL USA
[10] Texas Oncol, Ft Worth, TX USA
[11] Michigan Canc Res Consortium CCOP, Ypsilanti, MI USA
[12] Univ Texas Southwestern Med Ctr Dallas, Dallas, TX 75390 USA
[13] Univ Pittsburgh, Med Ctr, Pittsburgh, PA USA
[14] Christiana Care Hlth Syst, Newark, DE USA
[15] Baptist Med Ctr, Jacksonville, FL USA
[16] Ottawa Canc Ctr, Ottawa, ON, Canada
[17] Emory Univ, Winship Canc Inst, Dept Radiat Oncol, Atlanta, GA 30322 USA