1. Departments of Dermatology and
2. Case Western Reserve School of Medicine, Cleveland, OH, U.S.A.
3. Case Comprehensive Cancer Center, Cleveland, OH, U.S.A.
4. Department of Dermatology, Ohio State University, Columbus, OH, U.S.A.
E‐mail:
5. Radiation Oncology, University Hospitals Case Medical Center, 11100 Euclid Avenue, Lakeside 3500, Cleveland, OH 44124, U.S.A.