1. Division of Clinical Dermatology and Cutaneous Science; Department of Medicine; Dalhousie University; Halifax NS Canada
2. Department of Dermatology; Oregon Health & Science University School of Medicine; Portland OR USA
3. Department of Dermatology; University of Texas Southwestern Medical Center Southwestern Medical School; Dallas TX USA
4. Department of Dermatology; University of Utah School of Medicine; Salt Lake City UT USA
5. Eli Lilly and Company; Indianapolis IN USA