1. Department of Dermatology; Royal Victoria Infirmary; Newcastle upon Tyne U.K.
2. Institute of Genetic Medicine; University of Newcastle upon Tyne; U.K.
3. Department of Pathology; Royal Victoria Infirmary; Newcastle upon Tyne U.K.
4. Department of Cardiothoracics; Freeman Hospital; Newcastle upon Tyne U.K.
5. Department of Radiology; Royal Victoria Infirmary; Newcastle upon Tyne U.K.
6. Dermatopathology Department; St John's Institute of Dermatology; St Thomas' Hospital; London U.K.