[1] Asia Univ, Dept Healthcare Adm, Taichung, Taiwan
[2] Chung Shan Med Univ, Chung Shan Med Univ Hosp, Dept Hlth Policy Management, Taichung, Taiwan
[3] China Med Univ, Dept Hlth Serv Adm, Taichung, Taiwan
[4] Tulane Univ, Dept Hlth Syst Management, New Orleans, LA 70118 USA
[5] Taichung Hosp, Dept Hlth, Dept Internal Med, Taichung, Taiwan
[6] Ctr Dis Control, Branch Chief 3, Taichung, Taiwan
[7] Ctr Dis Control, Branch Chief 4, Tainan, Taiwan