1. Department of Dermatology; Taipei Veterans General Hospital; Taipei Taiwan
2. Institutes of Public Health; National Yang-Ming University; Taipei Taiwan
3. Department of Public Health; National Yang-Ming University; Taipei Taiwan
4. Department of Dermatology; Heping Fuyou Branch; Taipei City Hospital; Taipei Taiwan
5. Department of Education and Research; Taipei City Hospital; Taipei Taiwan
6. Hospital and Health Care Administration; National Yang-Ming University; Taipei Taiwan
7. Division of Gastroenterology and Hepatology; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
8. School of Medicine; National Yang-Ming University; Taipei Taiwan