About the Authors

Alexander Tomei

Roles Conceptualization, Formal analysis, Validation, Writing – original draft, Writing – review & editing

alexander.tomei@chuv.ch

Affiliation Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Switzerland

Joseph Studer

Roles Data curation, Formal analysis, Methodology, Supervision, Validation, Writing – original draft

Affiliations Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Switzerland, Service of Adult Psychiatry and Psychotherapy West, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Prilly, Switzerland

Gerhard Gmel

Roles Formal analysis, Funding acquisition, Methodology, Supervision, Validation

Affiliations Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Switzerland, Centre for Addiction and Mental Health, Institute for Mental Health Policy Research, Toronto, Ontario, Canada, Department of Health and Social Sciences, University of the West of England, Bristol, United Kingdom

Competing Interests

The authors have declared that no competing interest exists.