1. Department of Dermatology; University of Minnesota Medical School; Minneapolis MN USA
2. Department of Medicine; Division of Gastroenterology, Hepatology and Nutrition; University of Minnesota Medical School; Minneapolis MN USA
3. Aurora Diagnostics Twin Cities Dermatopathology; Plymouth MN USA
4. Miraca LS Division of Dermatopathology; Newton MA USA
5. Avera Medical Group Dermatology; Sioux Falls SD USA