Associate Professor, University of Lübeck, Department of Psychiatry and Psychotherapy …

Professor of Public Health, University of Edinburgh

Professor of Psychology, University of Memphis

Professor of Psychiatric Nursing, kermanshah university of medical sciences

Professor of Addiction Psychiatry, King's College London, UK

National Centre for Youth Substance Use Research, University of Queensland

Provost & Executive VP for Academic Affairs, Florida State University

Bern University of Applied Sciences

Cedars-Sinai Medical Center

Oslo University Hospital