[1] Macquarie Univ, Ctr Hlth Econ, Sydney, NSW, Australia
[2] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Rheumatol, Guangzhou, Guangdong, Peoples R China
[3] Univ Tasmania, Menzies Inst Med Res, Hobart, Tas, Australia
[4] Nanjing Med Univ, Sch Hlth Policy & Management, Dept Publ Adm, Nanjing, Jiangsu, Peoples R China
[5] Maastricht Univ, Dept Hlth Serv Res, Maastricht, Netherlands