1. Institute of Pathology; Medical Faculty University of Ljubljana; Ljubljana Slovenia
2. Department of Dermatology, Graduate School of Biomedical Sciences; Hiroshima University; Hiroshima Japan
3. Division of Anatomical Pathology at University of Stellenbosch; Cape Town South Africa
4. Department of Dermatopathology, St John's Institute of Dermatology; St Thomas' Hospital; London UK