1. Department of Psychiatry (P.M., P.S., A.M.M., B.C., M.M.), Second University of Naples, 80138 Naples, Italy
2. Psychiatric Clinic (P.M.), University of Salerno, 84084 Salerno, Italy
3. Endocannabinoid Research Group (F.P., V.D.M.), Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, 80078 Pozzuoli, Naples, Italy