[1] Stanford Univ, Stanford Canc Inst, Div Oncol, Dept Med, Stanford, CA USA
[2] Ctr Hosp Univ Montreal, Montreal, PQ, Canada
[3] Kanagawa Canc Ctr, Yokohama, Kanagawa, Japan
[4] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan
[5] Sungkyunkwan Univ, Div Hematol Oncol, Dept Internal Med, Samsung Med Ctr,Sch Med, Seoul, South Korea
[6] Chinese Acad Med Sci & Peking, Natl Canc Ctr, Natl Clin Res Ctr Canc, Canc Hosp, Beijing, Peoples R China
[7] Chinese Acad Med Sci & Pek, Dept Thorac Surg, Natl Clin Res Ctr Canc, Canc Hosp,Natl Canc Ctr, Beijing, Peoples R China
[8] Beijing Canc Hosp, Beijing, Peoples R China
[9] Univ Hosp Leuven, Leuven, Belgium
[10] Hosp Santa Creu & Sant Pau, Dept Med Oncol, Barcelona, Spain
[11] Zentralklin Bad Berka GmbH, Bad Berka, Germany
[12] Sanatorio Parque, Santa Fe, Argentina
[13] HIA SAINTE ANNE, Toulon, France
[14] Complejo Hosp Univ Insular Materno Infantil, Las Palmas Gran Canaria, Spain
[15] Mem Sloan Kettering Canc Ctr, New York, NY USA
[16] Univ Turin, AOU San Luigi Orbassano, Turin, Italy
[17] Merck & Co Inc, Rahway, NJ USA
[18] Merck & Co Inc, Kenilworth, NJ USA
[19] McGill Univ, Ctr Hlth, Montreal, PQ, Canada