Affiliation: | Department of Dermatology, Harvard Medical School, Department of Oral Medicine, Harvard School of Dental Medicine, and Center for Blistering Diseases, New England Baptist Hospital, Boston, MA, USA.;Department of Oral Medicine and Diagnostic Sciences, Harvard School of Dental Medicine, 188 Longwood Avenue, Room I-217, Boston, MA 02115, USA, tel. +617 432 4867;fax +617 432 4436;E-mail: |