1. Department of Dermatology Taipei Veterans General Hospital Taipei Taiwan
2. School of Medicine National Yang‐Ming University Taipei Taiwan
3. School of Medicine National Yang Ming Chiao Tung University Taipei Taiwan
4. Institute of Public Health and Department of Public Health National Yang‐Ming University Taipei Taiwan
5. Institute of Public Health and Department of Public Health National Yang Ming Chiao Tung University Taipei Taiwan
6. Department of Anesthesiology Shuang Ho Hospital Taipei Medical University New Taipei City Taiwan
7. Department of Anesthesiology School of Medicine College of Medicine Taipei Medical University Taipei Taiwan
8. Department of Family Medicine Taipei Veterans General Hospital TaipeiTaiwan
9. Division of Gastroenterology and Hepatology Department of Medicine Taipei Veterans General Hospital Taipei Taiwan