1. Dermatology, New Cross Hospital, Royal Wolverhampton NHS Trust , Wolverhampton , UK
2. Department of Dermatology, Henry Ford Health , Detroit, MI , USA
3. Department of Dermatology, St. Vincent’s Hospital College of Medicine, The Catholic University of Korea , Korea
4. Department of Dermatology, Université Paris-Est Créteil Val de Marne, Hôpital Henri Mondor , France