1. Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy
2. Department of Psychiatry, Fondazione Policlinico Universitario A. Gemelli IRCCS, L.go A. Gemelli 8, 00168 Rome, Italy
3. Nuclear Medicine Unit, Department of Diagnostic Imaging, Oncological Radiotherapy and Hematology, Fondazione Policlinico Universitario A. Gemelli IRCCS, L.go A. Gemelli 8, 00168 Rome, Italy
4. Department of Neurosciences, Imaging and Clinical Sciences, Università degli Studi G. D’Annunzio, Chieti-Pescara, Via dei Vestini 31, 66013 Chieti, Italy
5. School of Medical Sciences, UniCamillus International University of Medical Sciences, Via di S. Alessandro 8, 00131 Rome, Italy
6. Psychopharmacology, Drug Misuse and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9EU, UK
7. Institute of Nuclear Medicine, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy