1. Section of Dermatology, Department of Medicine and Surgery University of Parma Parma Italy
2. Department of Veterinary Science University of Parma Parma Italy
3. Department of Medicine and Surgery Unit of Neuroscience and Interdepartmental Centre of Robust Statistics (Ro.S.A.) University of Parma Parma Italy
4. University Unit of Dermatology and Regenerative Medicine University of Rome G. Marconi Rome Italy