1. Department of Dermatology; University of L'Aquila; L'Aquila Italy
2. Photobiology Unit; Ninewells Hospital & Medical School; University of Dundee; Dundee UK
3. Department of Dermatology; Bern University Hospital, Inselspital; Bern Switzerland
4. Private Practice; Nice France
5. Centrum Oosterwal; Alkmaar The Netherlands
6. Dermato Oncology Unit; San Gallicano Dermatological Institute; Rome Italy
7. Department of Dermatology; Policlinico Umberto I; Sapienza University of Rome; Rome Italy
8. Europaweg; Assen The Netherlands
9. Dermatology Department; Príncipe de Asturias University Hospital; Madrid Spain
10. Galderma R&D; Sophia Antipolis France
11. Department of Dermatology; Ramón y Cajal University Hospital; Madrid Spain