1. Department of Dermatology University of California San Francisco San Francisco California USA
2. Department of Dermatology and Dermatopathology, Saint‐Pierre, Brugmann and Queen Fabiola Children's University Hospitals Université Libre de Bruxelles Brussels Belgium
3. Department of Chemistry University of British Columbia Vancouver British Columbia Canada
4. CTA Pathology Portland Oregon USA
5. Department of Dermatology and Pathology Oregon Health and Science University Portland Oregon USA