[1] Univ Parma, Dept Clin & Expt Med, Parma, Italy
[2] Tufts Med Ctr, Mood Disorders Program, Boston, MA USA
[3] Local Hlth Serv, Dept Mental Hlth, Parma, Italy
[4] Univ Parma, Dept Biomed Biotechnol & Translat Sci, Unit Publ Hlth, Parma, Italy
[5] Kings Coll London, Inst Psychiat, London, England
[6] Tufts Univ, Dept Pharmacol & Psychiat, Sch Med, Boston, MA USA