1. Department of Dermatology; Taipei Veterans General Hospital; Taipei Taiwan
2. Department of Dermatology; National Yang-Ming University; Taipei Taiwan
3. Department of Dermatology; Wan Fang Hospital; Taipei Medical University; Taipei Taiwan
4. Department of Dermatology; Taichung Veterans General Hospital; Taichung Taiwan
5. Institute of Public Health; National Yang-Ming University; Taipei Taiwan
6. Department of Family Medicine; Taipei Veterans General Hospital; Taipei Taiwan
7. Department of Dermatology; National Defense Medical Center; Taipei Taiwan