1. Center for Child and Adolescent Mental Health, University College Hospital, Ibadan 200211, Nigeria
2. School of Health and Life Sciences, Teesside University, Middlesbrough TS1 3BX, UK
3. Faculty of Dentistry, University of Puthisastra, Phnom Penh 12211, Cambodia
4. Cephas Health Research Initiative Inc., Ibadan 200211, Nigeria
5. Department of Sociology, Usmanu Danfodiyo University, Sokoto 840104, Nigeria
6. Department of Sociology, University of Johannesburg, Johannesburg P.O. Box 524, South Africa
7. Department of Oral and Maxillofacial Surgery, University College Hospital, Ibadan 200211, Nigeria
8. Department of Preventive and Community Dentistry, School of Dentistry, University of Rwanda, Kigali P.O. Box 4285, Rwanda