1 Division of Psychiatry, Faculty of Health and Medical Sciences, The University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia.
2 Department of Psychiatry and Psychological Medicine, University Hospital Center Zagreb, Psychiatric Hospital 'Sveti Ivan', School of Medicine, University of Zagreb and Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia.