1. Department of Dermatology; University of Pennsylvania, Perelman School of Medicine; Philadelphia Pennsylvania
2. Department of Dermatology; Chonnam National University Medical School; Gwangju South Korea
3. Bryn Mawr Medical Specialists Association; Bryn Mawr Pennsylvania
4. Division of Dermatology, Department of Internal Medicine; University of Texas Austin, Dell Medical School; Austin Texas
5. Department of Dermatology; Hospital of the University of Pennsylvania; Philadelphia Pennsylvania