[1] Natl Taiwan Univ Hosp, Dept Internal Med, Hsinchu Branch, Hsinchu, Taiwan
[2] Natl Taiwan Univ Hosp, Div Hematol, Dept Internal Med, Taipei, Taiwan
[3] Natl Taiwan Univ Hosp, Dept Lab Med, Taipei, Taiwan
[4] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan
[5] Coll Med, Taipei, Taiwan