1. Department of Dermatology Birmingham Children's Hospital Birmingham Women's and Children's NHS Foundation Trust Birmingham U.K
2. Clinical Genetics Group MRC Weatherall Institute of Molecular Medicine University of Oxford John Radcliffe Hospital Oxford U.K
3. Department of Paediatrics Faculty of Medicine Comenius University in Bratislava and National Institute of Children's Diseases Bratislava Slovak Republic
4. Department of Pathology Birmingham Children's Hospital Birmingham Women's and Children's NHS Foundation Trust Birmingham U.K