[1] Catholic Univ Korea, Coll Med, Catholic Hemopoiet Stem Cell Bank, Seoul, South Korea
[2] Catholic Univ Korea, Coll Med, Dept Internal Med, Seoul, South Korea
[3] Catholic Univ Korea, Coll Med, Dept Microbiol & Immunol, Seoul, South Korea
[4] Catholic Univ Korea, Coll Med, Catholic Hemopoiet Stem Cell Transplantat Ctr, Seoul, South Korea