Alessandra Fisher (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Giovanni Castellini (Department of Experimental, Clinical and Biomedical Sciences Careggi University Hospital; Psychiatric Unit, University of Florence), Jiska Ristori (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Helen Casale (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Emanuele Cassioli (Department of Experimental, Clinical and Biomedical Sciences Careggi University Hospital; Psychiatric Unit, University of Florence), Carolina Sensi (Department of Experimental, Clinical and Biomedical Sciences Careggi University Hospital; Psychiatric Unit, University of Florence), Egidia Fanni (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Anna Maria Letizia Amato (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Eva Bettini (Department of Experimental, Clinical and Biomedical Sciences, Sexual Medicine and Andrology Unit, University of Florence, Florence), Maddalena Mosconi (Hospital S.Camillo-Forlanini,, Gender Identity Development Service), Davide Dèttore (Department of Health Sciences, University of Florence), Valdo Ricca (Psychiatric Unit, University of Florence), Mario Maggi (Department of Experimental, Clinical and Biomedical Sciences Careggi University Hospital)