1. Population Health Sciences Institute , Newcastle University, Baddiley-Clark Building, Newcastle upon Tyne NE2 4AX, UK
2. Department of Health Promotion , Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, 6200 MD, Netherlands
3. Institute for Mental Health Policy Research , Centre for Addiction and Mental Health, Toronto, M5S 2S1, ON, Canada
4. ESADE Business School , Ramon Llull University, Barcelona, 08034, Spain