1. Department of Dermatology & Wound Healing Cardiff Institute of Infection & Immunity Cardiff University 3rd Floor Glamorgan House Heath Park, Cardiff CF14 4XN U.K.
2. Welsh Institute of Dermatology University Hospital of Wales Cardiff U.K.
3. South East Wales Trials Unit Institute of Translation, Innovation, Methodology and Engagement Cardiff University Cardiff U.K.
4. Department of Dermatology Universitätsklinikum Carl Gustav Carus Dresden Germany