1. Department of Emergency Medicine, Komfo Anokye Teaching Hospital, Kumasi, Ghana
2. Emergency Medicine Research Office, Komfo Anokye Teaching Hospital, Kumasi, Ghana
3. Centre for the Study of Drugs, Alcohol, Smoking and Health, School of Nursing, University of Michigan, Ann Arbor, Michigan, USA
4. Injury Prevention Centre, University of Michigan, Ann Arbor, Michigan, USA
5. Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan, USA