[1] Natl Taiwan Univ Hosp, Taipei, Taiwan
[2] Natl Taiwan Univ, Ctr Canc, Taipei, Taiwan
[3] Asan Med Ctr, Seoul, South Korea
[4] Seoul Natl Univ, Bundang Hosp, Seoul, South Korea
[5] Zhejiang Canc Hosp, Hangzhou, Peoples R China
[6] Ist Europeo Oncol, Milan, Italy
[7] Kyushu Univ, Grad Sch Med Sci, Fukuoka, Japan
[8] Osaka Int Canc Inst, Osaka, Japan
[9] Med Sur Hosp, Ctr Oncol, Mexico City, Mexico
[10] Peking Union Med Coll Hosp, Beijing, Peoples R China
[11] Chang Gung Mem Hosp, Taoyuan, Taiwan
[12] Inst Jalisciense Cancerol, Guadalajara, Mexico
[13] Zhejiang Univ, Affiliated Hosp 1, Hangzhou, Zhejiang, Peoples R China
[14] Ctr Leon Berard, Lyon, France
[15] Chungbuk Natl Univ Hosp, Cheongju, South Korea
[16] Hosp Univ Virgen Macarena, Seville, Spain
[17] Okayama Univ Hosp, Okayama, Japan
[18] Mem Sloan Kettering Canc Ctr, New York, NY USA
[19] Merck & Co Inc, Rahway, NJ USA
[20] Shanghai Chest Hosp, Shanghai, Peoples R China