1. Centre for Academic Mental Health, School of Social and Community Medicine, University of Bristol; Bristol UK
2. Centre for Health Equity Studies; Stockholm University/Karolinska Institute; Stockholm Sweden
3. Department of Public Health Sciences; Division of Epidemiology, Karolinska Institute; Stockholm Sweden
4. Biostatistics, London School of Hygiene and Tropical Medicine; London UK
5. Clinical Trials and Applied Epidemiology; Mental Health Sciences Unit, Faculty of Brain Sciences, University College London; London UK