1. Autoimmune Bullous Diseases Research Center Tehran University of Medical Sciences Tehran Iran
2. Department of Dermatology Babol University of Medical Sciences Babol Iran
3. Department of Dermatology, School of Medicine Razi Hospital Tehran University of Medical Sciences Tehran Iran
4. Department of Dermatology, Rasoul‐e‐Akram Hospital Iran University of Medical Sciences Tehran Iran
5. Skin and Stem Cell Research Center Tehran University of Medical Sciences Tehran Iran
6. Department of Dermatology Mayo Clinic Rochester Minnesota USA
7. Clinical Research Development Center, Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah Iran