[1] Univ Hong Kong Shenzhen Hosp, Dept Med, Div Rheumatol, Shenzhen, Peoples R China
[2] Minghsin Univ Sci & Technol, Dept Sr Serv Ind Management, Hsinchu, Taiwan
[3] Minist Hlth & Welf, Cishan Hosp, Dept Orthoped, Kaohsiung, Taiwan
[4] Chung Shan Med Univ, Inst Med, Taichung, Taiwan
[5] Changhua Christian Hosp, Div Gastroenterol & Hepatol, Changhua, Taiwan
[6] Chung Shan Med Univ Hosp, Dept Allergy Immunol & Rheumatol, 10,Sec 1,Jianguo N Rd, Taichung 40201, Taiwan
[7] China Med Univ, Grad Inst Integrated Med, Taichung, Taiwan