1. Department of Dermatology and the Center for Clinical Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA;
2. Department of Dermatology, University Hospital, Zürich, Switzerland;
3. Department of Dermatology, University Hospital, Basel, Switzerland;
4. Department of Dermatology, University of Tokyo, Tokyo, Japan;
5. Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA;
6. Adaptive Biotechnologies, Seattle, WA; and
7. Dana-Farber/Brigham and Women’s Cancer Center, Boston, MA