1. Graduate Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan, ROC; Room 1515, No. 1, Sec. 1, Jen-Ai Road, Taipei, 100
2. Graduate Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan, ROC
3. Bureau of National Health Insurance, Department of Health, Executive Yuan, Taiwan, ROC