1. Department of Dermatology Tufts Medical Center Boston MA U.S.A.
2. Department of Diagnostic Imaging Rhode Island Hospital The Warren Alpert Medical School of Brown University Providence, Rhode Island U.S.A.
3. Department of Dermatology VA Boston Healthcare System MA Center for Blistering Diseases Boston MA U.S.A.
4. Department of Dermatology Icahn School of Medicine at Mt. Sinai New York U.S.A.