[1] Univ Bologna, Bologna, Italy
[2] Johns Hopkins Sidney Kimmel Comprehens Canc Ctr, Baltimore, MD USA
[3] Hannover Med Sch, Hannover, Germany
[4] Hosp Univ & Politecn La Fe, Valencia, Spain
[5] Inst Salud Carlos III, CIBERONC, Madrid, Spain
[6] Cleveland Clin, Cleveland, OH 44106 USA
[7] Inst Catala Oncol, Badalona, Spain
[8] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[9] Azienda Sanit Univ Integrata Udine, Udine, Italy
[10] UCSD Moores Canc Ctr, La Jolla, CA USA
[11] Sanford Stem Cell Clin Ctr, La Jolla, CA USA
[12] Pfizer Inc, New York, NY USA
[13] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA