[1] CCF Lerner Coll Med, CWRU, CCF Taussig Canc Ctr, Cleveland, OH USA
[2] Cleveland Clin, Med Oncol, Cleveland, OH USA
[3] Royal Marsden Hosp, Dept Med, London, England
[4] Woljskowski Inst Med, Clin Oncol, Warsaw, Poland
[5] Univ Chicago Hosp, Dept Med, Chicago, IL USA
[6] San Matteo Univ Hosp, IRCCS, Pavia, Italy
[7] Bayer Hlthcare Oncol, West Haven, CT USA
[8] Inst Gustave Roussy, Immunotherapy Unit, Villejuif, France