[1] Univ Foggia, Dept Clin & Expt Med, Foggia, Italy
[2] Natl Univ Asuncion, Sch Med Sci, Dept Psychiat, Asuncion, Paraguay
[3] Fundacao ABC, Dept Neurosci, Med Sch, Santo Andre, SP, Brazil
[4] Univ Sao Paulo, Med Sch, Dept Psychiat, Sao Paulo, Brazil
[5] Dept Mental Hlth, Teramo, Italy
[6] Kings Coll London, Inst Psychiat, London, England