[1] Hallym Univ, Med Ctr, Anyang, South Korea
[2] Hallym Univ, Med Ctr, Coll Med, Seoul, South Korea
[3] Hallym Univ, Chuncheon Sacred Heart Hosp, Chunchon, South Korea
[4] Cathol Univ Kore, St Vincents Hosp, Seoul, South Korea
[5] Yeungnam Univ Hosp, Dept Hemato Oncol, Daegu, South Korea
[6] Seoul Natl Univ Bundang Hosp, Dept Internal Med, Seoul, South Korea
[7] Hallym Univ, Coll Med, Med Ctr, Dept Internal Med, Anyang, South Korea
[8] Hallym Univ, Chuncheon Sacred Heart Hosp, Div Hematol Oncol, Dept Internal Med, Chunchon, South Korea
[9] Hallym Univ, Kang Dong Sacred Heart Hosp, Med Ctr, Seoul, South Korea
[10] Hallym Univ, Med Ctr, Anyang, South Korea
[11] Hallym Univ, Sacred Heart Hosp, Dept Internal Med, Anyang, South Korea