1. Rheumatology Unit, AOU Meyer IRCCS, 50139 Firenze, Italy
2. Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
3. Dentistry and Oral Surgery, AOU Pisana, 56126 Pisa, Italy
4. Dermatology Unit, AOU Pisana, 56126 Pisa, Italy
5. Dermatology Unit, AOU Meyer IRCCS, 50139 Firenze, Italy
6. Neurosciences, Psychology, Drug Research and Child Health (NEUROFARBA) Department, University of Firenze, 50139 Firenze, Italy