1. Department of Radiation OncologyBrigham and Women's HospitalDana‐Farber Cancer Institute Boston MA USA
2. Department of Dermatology University of California Davis Sacramento CA USA
3. Department of Dermatology University of California San Francisco San Francisco CA USA
4. Department of Pathology and Laboratory Medicine Brown University Providence RI USA
5. Department of Dermatology Massachusetts General Hospital Boston MA USA
6. Department of Dermatology Beth Israel Deaconess Medical Center Boston MA USA