1 Section of Dermatology, Department of Health Sciences, USL Toscana Centro, University of Florence, Florence, Italy.
2 Section of Anatomic Pathology, Department of Health Sciences, USL Toscana Centro, University of Florence, Florence, Italy.
3 Section of Dermatology, Department of Health Sciences, USL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Florence, Italy.