[1] Sungkyunkwan Univ, Kangbuk Samsung Hosp, Dept Hematol & Oncol, Sch Med, Seoul, South Korea
[2] Korea Univ, Anam Hosp, Dept Oncol Hematol, Seoul, South Korea
[3] Sungkyunkwan Univ, Kangbuk Samsung Hosp, Dept Pathol, Sch Med, Seoul, South Korea
[4] Ulsan Univ Hosp, Dept Hematol & Oncol, Ulsan, South Korea