1. Department of Dermatology and Cutaneous Biology; Sidney Kimmel Medical College at Thomas Jefferson University; Philadelphia Pennsylvania
2. Departments of Dermatology and Pathology, Via Christi Clinic; Ascension Medical Group; Wausau Wisconsin
3. Department of Family Medicine; University of Kansas Medical Center-Wichita; Wichita Kansas
4. Departments of Dermatology and Pathology; Saint Louis University School of Medicine; St. Louis Missouri