1. Department of Clinical Dentistry, University of Bergen, Bergen, Norway
2. Department of Global Health and Primary Care, University of Bergen, Bergen, Norway
3. Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway
4. Department of Global Health and Primary Care, Centre for International Health, University of Bergen, Bergen, Norway
5. Department of Paediatrics’ and Child Health, School of Medicine, College of Health Sciences, Makerere University Kampala, Kampala, Uganda