Gareth Hopkin1, Ester Messina2, Graham Thornicroft3, Mirella Ruggeri2. 1. Department of Social Policy, London School of Economics and Political Science, London, United Kingdom of Great Britain and Northern Ireland. 2. Section of Psychiatry, Department of Neuroscience Biomedicine and Movement, University of Verona, Verona, Italy. 3. Centre for Implementation Science, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom of Great Britain and Northern Ireland.