1. Dermatology Department University Hospital Complex of Toledo Toledo Spain
2. Department of Occupational and Environmental Dermatology Lund University Lund Sweden
3. Department of Occupational and Environmental Dermatology Skåne University Hospital Malmö Sweden
4. Dermatology Department Hospital Universitario de Guadalajara Guadalajara Spain
5. Department of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, Faculty of Medicine Alcalá University Madrid Spain
6. Dermatology Department University San Cecilio Hospital Granada Spain
7. Dermatology Department Complejo Hospitalario Universitario Santiago de Compostela Spain
8. Dermatology Department Hospital Universitario La Paz Madrid Spain
9. Dermatology Department Universidad de Las Palmas de Gran Canaria Las Palmas Spain
10. Dermatology Department Hospital Universitario Fundación Alcorcón Madrid Spain
11. Internal Medicine Department University Hospital of Guadalajara Guadalajara Spain
12. Dermatology Department Hospital del Mar, IMIM, Universitat Autònoma de Barcelona Barcelona Spain