1. Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
2. Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health National Taiwan University Taipei Taiwan
3. School of Oral Hygiene, College of Oral Medicine Taipei Medical University Taipei Taiwan
4. Department of Health Care Management, College of Management Chang Gung University Tao‐Yuan Taiwan
5. Health Promotion Administration Ministry of Health and Welfare Taipei Taiwan