[1] Univ Hosp Gasthuisberg, B-3000 Louvain, Belgium
[2] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[3] Vall dHebron Univ Hosp, Barcelona, Spain
[4] Maria Sklodowska Curie Mem Canc Ctr, Dept Clin & Expt Oncol, Gliwice, Poland
[5] Inst Oncol, Gliwice, Poland
[6] Warszawski Uniwersytet Med, Warsaw, Poland
[7] Austin Hlth, Heidelberg, Vic, Australia
[8] Thomas Jefferson Univ, Kimmel Canc Ctr, Philadelphia, PA 19107 USA
[9] Krasnodar City Oncol Ctr, Krasnodar, Russia
[10] Amgen Inc, Thousand Oaks, CA USA
[11] Amgen Inc, Uxbridge, Middx, England