1. School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
2. School of Public Health and Information Sciences, University of Louisville, Louisville, KY, USA
3. Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA
4. Council for Scientific and Industrial Research, Building and Road Research Institute, Kumasi, Ghana
5. Department of Surgery, Komfo Anokye Teaching Hospital, Kumasi, Ghana