[1] Chung Shan Med Univ, Sch Med, Taichung, Taiwan
[2] Univ Penn, Ctr Global Hlth, Perelman Sch Med, Philadelphia, PA USA
[3] Harvard TH Chan Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
[4] Massachusetts Gen Hosp, Dept Dermatol, Boston, MA USA
[5] Boston Univ, Henry M Goldman Sch Dent Med, Dept Orthodont & Dentofacial Orthoped, Boston, MA USA
[6] Chung Shan Med Univ Hosp, Dept Allergy Immunol & Rheumatol, Taichung, Taiwan
[7] Chung Shan Med Univ, Inst Med, Taichung, Taiwan
[8] China Med Univ, Grad Inst Integrated Med, Taichung, Taiwan
[9] Chung Shan Med Univ Hosp, Dept Allergy Immunol & Rheumatol, 110,Sec 1,Jianguo N Rd, Taichung, Taiwan
[10] Chung Shan Med Univ, Inst Med, 110,Sec 1,Jianguo N Rd, Taichung, Taiwan
[11] China Med Univ, Grad Inst Integrated Med, 110,Sec 1,Jianguo N Rd, Taichung, Taiwan
[12] Harvard Med Sch, Brigham & Womens Hosp, Dept Med, Div Pharamacoepidemiol & Pharmacoecon, Boston, MA 02115 USA