[1] Med Univ Silesia, Fac Med Sci Katowice, Katowice, Poland
[2] Cavan Monaghan Mental Hlth Serv, Monaghan, Ireland
[3] Cumbria Northumberland Tyne & Wear NHS Fdn Trust, Cumbria, England
[4] Univ Hosp Louis Pasteur, Fac Med, Kosice, Slovakia
[5] European Union Med Specialists, Brussels, Belgium
[6] Univ Psychiat Hosp Vrapce, Zagreb, Croatia
[7] Universitair Med Ctr Utrecht, Brain Ctr, Psychiat Diagnost & Early Psychosis, Utrecht, Netherlands
[8] Cardiff Univ, Natl Ctr Mental Hlth, Cardiff, Wales