[1] Zhejiang Univ, Sch Med, Sch Publ Hlth, Ctr Hlth Policy Studies, 866 Yuhangtang Rd, Hangzhou 310058, Zhejiang, Peoples R China
[2] Nanjing Univ, Sch Govt, Ctr Hlth Policy & Management Studies, Nanjing, Jiangsu, Peoples R China
[3] Shandong Univ, Shandong Prov Hosp, Hlth Insurance Off, Jinan, Shandong, Peoples R China
[4] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Global Hlth Management & Policy, New Orleans, LA 70118 USA
[5] Shandong Univ, Shandong Prov Hosp, Dept Endocrinol, Jinan, Shandong, Peoples R China