[1] Rocky Mt Canc Ctr, Denver, CO USA
[2] Azienda Unita Sanit Locale Romagna, Ravenna, Italy
[3] Sumy State Univ, Sumy, Ukraine
[4] Moscow City Oncol Hosp, Moscow Healthcare Dept, Moscow, Russia
[5] Univ Las Palmas Gran Canaria, Complejo Hosp Univ Insular Materno Infantil Gran, Las Palmas Gran Canaria, Spain
[6] Florida Canc Specialists, Lady Lake, FL USA
[7] Natl Univ Singapore Hosp, Singapore, Singapore
[8] William Osler Hlth Syst, Brampton, ON, Canada
[9] Natl Hosp Org Shikoku Canc Ctr, Matsuyama, Ehime, Japan
[10] Genentech Inc, San Francisco, CA 94080 USA
[11] F Hoffmann La Roche, Basel, Switzerland
[12] Florida Hosp Canc Inst, Orlando, FL USA