1. Department of Dermatology, University of Kiel, Kiel, Germany;
2. San Gallicano Dermatological Institute, Rome, Italy;
3. Department of Dermatology, University Hospital of Brest, Brest, France;
4. Laboratory of Neurosciences, University of Western Brittany, Brest, France;
5. Department of Biomedical Science, Faculty of Health and Society, Malmö University, Malmö, Sweden;
6. Division of Drug Delivery Technology, Leiden Academic Centre for Drug Research, Leiden, The Netherlands