Duleeka Knipe1, Keith Hawton2, Mark Siynor3, Thomas Niederkrotenthaler4. 1. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2PS, UK. 2. Centre for Suicide Research, University of Oxford, Oxford, UK. 3. Sunnybrook Health Sciences Centre, Toronto, ON, Canada. 4. Centre for Public Health, Department of Social and Preventive Medicine, Vienna, Austria.