[1] Wroclaw Med Univ, Dept Psychiat, Pasteura 10, PL-50367 Wroclaw, Poland
[2] IRCCS Fdn Don Carlo Gnocchi, Milan, Italy
[3] Univ Worcester, Assoc Dementia Studies, Worcester, England
[4] Univ Bologna, Dept Psychol, Bologna, Italy
[5] Vrije Univ Amsterdam, Med Ctr, Amsterdam Univ Med Ctr, Dept Psychiat,Amsterdam Publ Hlth Res Inst, Amsterdam, Netherlands
[6] Vrije Univ Amsterdam, Med Ctr, Dept Psychiat, Amsterdam, Netherlands