1. Photobiology Unit St John's Institute of Dermatology Guy's and St Thomas' NHS Foundation Trust London UK
2. Photodermatology Unit Division of Dermatology Department of Medicine King Chulalongkorn Memorial Hospital and Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Dermatopathology Department Guy's and St Thomas' NHS Foundation Trust London UK
4. Dermatology Department University Hospital Southampton University Hospital Southampton NHS Foundation Trust Southampton UK