1. Division of Interdisciplinary Research and Practice, School of Health and Social Care, University of Essex , Essex, Colchester CO4 3SQ , UK
2. Department of Gerontology and Geriatrics, Africa Centre for Epidemiology , Accra , Ghana
3. Institute of Regional Health Research, University of Southern Denmark , 5000 Odense , Denmark
4. College of Nursing, Midwifery and Healthcare, University of West London , Brentford TW8 9GB , UK
5. Logistics and Supply Chain Management, School of Business, Koforidua Technical University , Koforidua , Ghana