3 Klinik für Dermatologie und Venerologie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität, Freiburg, Deutschland.
4 Departments of Dermatology, Royal Melbourne Hospital, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville and Box Hill Hospital - Monash University, Eastern Health Clinical School, Box Hill, Victoria, Australia.