[1] Univ Maryland, Greenebaum Comprehens Canc Ctr, Hematol Oncol, Baltimore, MD 21201 USA
[2] Univ Calif San Francisco, Oncol, San Francisco, CA 94143 USA
[3] Univ Colorado, Canc Ctr, Dept Med Oncol, Colorado City, CO USA
[4] Univ Colorado, Canc Ctr, Dept Otolaryngol, Colorado City, CO USA
[5] Gates Ctr Regenerat Med, Colorado City, CO USA
[6] Queen Elizabeth Hosp, Inst Head & Neck Studies & Educ, Oncol, Birmingham, W Midlands, England
[7] Univ Lyon, Canc Ctr Ctr Leon Berard, Clin Oncol, Lyon, France
[8] McGill Univ, Hlth Ctr, Dept Oncol, Montreal, PQ, Canada
[9] Duke Univ, Med Ctr, Med Oncol, Durham, NC USA
[10] Univ Hosp Leuven, Dept Oncol, Leuven, Belgium
[11] AstraZeneca, Immunooncol GMD, Gaithersburg, MD USA
[12] Univ Barcelona, Catalan Inst Oncol, Med Oncol, Barcelona, Spain