[1] Univ Calif San Francisco, San Francisco, CA USA
[2] Duke Univ, Med Ctr, Durham, NC USA
[3] Univ N Carolina, Chapel Hill, NC USA
[4] Mayo Clin, Canc Ctr, Rochester, MN USA
[5] Indiana Univ, Simon Canc Ctr, Indianapolis, IN USA
[6] Medstar Washington Hosp Ctr, Washington, DC USA
[7] NSABP NRG Oncol, Goldsboro, NC USA
[8] Southeastern Med Oncol Ctr, Goldsboro, NC USA
[9] Alliance Clin Trials Oncol, Naperville, IL USA
[10] Univ Chicago, Chicago, IL USA
[11] Dana Farber Canc Inst, Boston, MA USA
[12] Mem Sloan Kettering Canc Ctr, New York, NY USA
[13] Ohio State Univ, Arthur G James Canc Hosp, Comprehens Canc Ctr, Columbus, OH USA
[14] Yale Univ, Dept Med Oncol, Sch Med, New Haven, CT USA
[15] Oregon Hlth & Sci Univ, Portland, OR USA
[16] Amer Soc Clin Oncol, Alexandria, VA USA
[17] Brigham & Womens Hosp, Boston, MA USA
[18] Univ Southern Calif, Los Angeles, CA USA