[1] Oregon Hlth & Sci Univ, Portland, OR USA
[2] NYU Langone Med Ctr, Perlmutter Canc Ctr, New York, NY USA
[3] Hosp Univ 12 Octubre, Madrid, Spain
[4] Univ Chicago, Med Ctr, Chicago, IL USA
[5] Cleveland Clin, Cleveland, OH 44106 USA
[6] Dana Farber Canc Inst, Boston, MA 02115 USA
[7] Queen Mary Univ London, Barts Canc Inst, London, England
[8] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA
[9] Johns Hopkins Univ, Sidney Kimmel Comprehens Canc Ctr, Baltimore, MD USA
[10] Erasmus MC Canc Inst, Rotterdam, Netherlands
[11] Merck & Co Inc, Kenilworth, NJ USA
[12] Fox Chase Canc Ctr, 7701 Burholme Ave, Philadelphia, PA 19111 USA