[1] Local Hlth Serv, Dept Mental Hlth, Parma, Italy
[2] Univ Parma, Sect Psychiat, Dept Neurosci, I-43126 Parma, Italy
[3] Tufts Med Ctr, Mood Disorders Program, Boston, MA USA
[4] Univ Parma, Sch Med, Publ Hlth Unit, I-43126 Parma, Italy
[5] Harvard Univ, Sch Med, Dept Global Hlth & Social Med, Boston, MA USA
[6] Tufts Univ, Sch Med, Dept Pharmacol & Psychiat, Boston, MA 02111 USA