1. Department of Dermatology; Taipei Veterans General Hospital and National Yang-Ming University; Taipei Taiwan
2. Department of Pathology; National Taiwan University Hospital and College of Medicine; Taipei Taiwan
3. Department of Epidemiology; UNC Gillings School of Global Public Health; University of North Carolina at Chapel Hill; Chapel Hill North Carolina USA
4. Department of Dermatology; National Taiwan University Hospital and College of Medicine; Taipei Taiwan