1. Department of Medical Education Taipei Veterans General Hospital Taipei Taiwan
2. Department of Internal Medicine Taipei Veterans General Hospital Taipei Taiwan
3. School of Medicine National Yang Ming Chiao Tung University Taipei Taiwan
4. Center for Evidence‐Based Medicine Taipei Veterans General Hospital Taipei Taiwan
5. General Clinical Research Center Taipei Veterans General Hospital Taipei Taiwan
6. Division of Cardiology Department of Internal Medicine Taipei Veterans General Hospital Taipei Taiwan
7. Institute of Public Health and Community Medicine Research Center National Yang Ming Chiao Tung University School of Medicine Taipei Taiwan