1. Institute of Clinical Pharmacy and Pharmaceutical Sciences; National Cheng Kung University Hospital; Tainan Taiwan
2. Department of Family Medicine, College of Medicine; National Cheng Kung University Hospital; Tainan Taiwan
3. Department of Economics; School of Social Sciences, National Cheng Kung University; Tainan Taiwan
4. Department of Family Medicine; National Cheng Kung University Hospital; Tainan Taiwan