1. University of Oxford; Department of Psychiatry; Warneford Hospital Oxford UK
2. School of Public Health, Imperial College London; Neuroepidemiology and Ageing (NEA) Research Unit; London UK
3. Tel Aviv University; Department of Psychiatry, Sackler Faculty of Medicine; Tel Aviv Israel
4. Geha Mental Health Center; Research Unit; Petach Tiqva Israel
5. University of Oxford; Radcliffe Department of Medicine; John Radcliffe Hospital Level 4, Main Hospital, Room 4401C Oxford Oxfordshire UK OX3 9DU
6. Warneford Hospital; Centre for Suicide Research, University Department of Psychiatry; Oxford UK OX3 7JX
7. University of Verona; Department of Public Health and Community Medicine; Verona Italy