[1] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Seoul, South Korea
[2] Yonsei Univ, Med Ctr, Seoul, South Korea
[3] Chungbuk Natl Univ Hosp, Cheongju, South Korea
[4] Natl Cheng Kung Univ, Med Coll & Hosp, Tainan, Taiwan
[5] Univ Ulsan, Asan Med Ctr, Coll Med, Seoul, South Korea
[6] Natl Taiwan Univ Hosp, Taipei, Taiwan
[7] Boehringer Ingelheim Taiwan Ltd, Taipei, Taiwan
[8] Boehringer Ingelheim Korea, Seoul, South Korea
[9] Boehringer Ingelheim China Investment Co Ltd, Shanghai, Peoples R China
[10] Natl Canc Ctr, Singapore, Singapore