[1] Zhejiang Chinese Med Univ, Dept Rheumatol, Affiliated Hosp 2, Hangzhou, Peoples R China
[2] Minghsin Univ Sci & Technol, Dept Sr Serv Ind management, Hsinchu, Taiwan
[3] Shu Te Univ, Dept Recat & Sport Management, Kaohsiung, Taiwan
[4] Cishan Hosp, Dept Orthoped, Minist Hlth & Welf, Kaohsiung, Taiwan
[5] Chung Shan Med Univ, Inst Med, Taichung 404, Taiwan
[6] Chung Shan Med Univ Hosp, Dept Allergy Immunol & Rheumatol Taiwan, Taichung, Taiwan
[7] China Med Univ, Grad Inst Integrated Med, Taichung, Taiwan