1 Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, Pisa 56126, Italy; U.O. Psichiatria 2, Azienda Ospedaliera Universitaria Pisana (AOUP), Pisa, Italy. Electronic address: giulio.perugi@med.unipi.it.
2 Department of Clinical and Experimental Medicine, University of Pisa, Via Savi 10, Pisa 56126, Italy.