[1] Taichung Hosp, Minist Hlth & Welf, Pharmaceut Dept, Taichung, Taiwan
[2] China Med Univ, Dept Hlth Serv Adm, Taichung, Taiwan
[3] China Med Univ Hosp, Clin Trial Res Ctr CTC, Management Off Hlth Data DryLab, Taichung, Taiwan
[4] Taichung Hosp, Minist Hlth & Welf, Dept Internal Med, 199 Sect 1,San Min Rd, Taichung 40343, Taiwan
[5] Cent Taiwan Univ Sci & Technol, Dept Healthcare Adm, Taichung, Taiwan