[1] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr SMC, Dept Hematol Oncol, Seoul, South Korea
[2] Samsung Med Ctr, Hematol & Med Oncol, Seoul, South Korea
[3] Seoul Natl Univ, Internal Med Dept, Coll Med, Yeongeon Med Campus, Seoul, South Korea
[4] Natl Canc Ctr, Grad Sch Canc Sci & Policy, Ctr Lung Canc, Goyang, South Korea
[5] Gyeongsang Natl Univ Hosp, Internal Med Dept, Jinju, South Korea
[6] Gyeongsang Natl Univ, Sch Med, Jinju, South Korea
[7] Catholic Univ Korea, Dept Med Oncol, St Vincents Hosp, Suwon, South Korea
[8] Kangbuk Samsung Hosp, Internal Med Dept, Samsung Med Ctr SMC, Seoul, South Korea
[9] Univ Ulsan, Dept Oncol, Asan Med Ctr, Seoul, South Korea
[10] Inje Univ Haeundae Paik Hosp, Med Oncol Dept, Busan, South Korea
[11] Dong A Univ, Internal Med, Med Ctr, Busan, South Korea
[12] SNUBH Seoul Natl Univ Bundang Hosp, Dept Internal Med, Seongnam, South Korea
[13] Konkuk Univ, Dept Med Oncol, Med Ctr, Seoul, South Korea
[14] Chosun Univ Hosp, Internal Med, Gwangju, South Korea
[15] Chungbuk Natl Univ Hosp, Internal Med, Cheongju, South Korea
[16] Korea Univ Guro Hosp, Dept Internal Med, Seoul, South Korea
[17] Korea Univ Anam Hosp, Dept Hematooncol, Seoul, South Korea
[18] Kosin Univ Gospel Hosp, Dept Internal Med, Busan, South Korea