1. St John's Institute of Dermatology; King's College London; Guy's Hospital; London UK
2. Department of Dermatology; Nagoya University Graduate School of Medicine; Nagoya Japan
3. As'ad Al-Hamad Dermatology Center; Al-Sabah Hospital; Kuwait City Kuwait
4. The National Diagnostic EB Laboratory GSTS Pathology St Thomas' Hospital; London UK
5. Department of Genetics and Molecular Medicine; King's College London; Guy's Hospital; London UK