[1] Chang Gung Univ, Coll Med, Sch Med, Taoyuan, Taiwan
[2] Chang Gung Univ, Chang Gung Mem Hosp, Div Rheumatol Allergy & Immunol, Linkou Branch,Coll Med, Taoyuan, Taiwan
[3] Chang Gung Mem Hosp, Dept Pathol, Linkou Branch, Taoyuan, Taiwan
[4] Chang Gung Univ, Taoyuan, Taiwan
[5] Taipei Med Univ, Coll Med, Sch Med, Taipei, Taiwan
[6] Chang Gung Mem Hosp, Div Rheumatol Allergy & Immunol, 5 Fu Hsing St, Taoyuan 333, Taiwan