1. School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
2. Department of Ophthalmology, Taichung Veterans General Hospital, Taichung 407, Taiwan
3. School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
4. Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Taipei 112, Taiwan
5. Division of Endocrinology and Metabolism, Department of Internal Medicine, Puli Branch of Taichung Veterans General Hospital, Nantou 545, Taiwan
6. Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan
7. Section of Infectious Diseases, Taipei City Hospital, Taipei 103, Taiwan
8. Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei 112, Taiwan
9. Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan
10. School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei 242, Taiwan
11. Division of Endocrinology and Metabolism, Department of Internal Medicine, Fu Jen Catholic University Hospital, New Taipei 243, Taiwan
12. Department of Medical Education, Fu Jen Catholic University Hospital, New Taipei 243, Taiwan