1. Research Department FOCOS Orthopaedic Hospital Accra Ghana
2. Department of Nursing, Faculty of Allied Health Sciences, College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana
3. Department of Pharmacology and Neuroscience University of North Texas Health Science Center Fort Worth Texas USA
4. Korle Bu Teaching Hospital Accra Ghana
5. School of Public Health University of Ghana College of Health Sciences Accra Ghana