[1] Triserv Gen Hosp, Div Rheumatol Immunol Allergy, Dept Internal Med, Natl Def Med Ctr, Taipei 114, Taiwan
[2] Armed Forces Taichung Gen Hosp, Dept Internal Med, Div Rheumatol Immunol Allergy, Taichung 411, Taiwan
[3] Triserv Gen Hosp, Dept Radiol, Natl Def Med Ctr, Taipei 114, Taiwan