1. Division of Interdisciplinary Research and Practice, School of Health and Social Care, Colchester CO4 3SQ, UK
2. Department of Gerontology and Geriatrics, Africa Centre for Epidemiology, Accra North P.O. Box AN 18462, Ghana
3. Department of Science/Health, Physical Education and Sports, Abetifi Presbyterian College of Education, Abetifi-Kwahu P.O. Box 19, Ghana
4. Department of Physiotherapy and Rehabilitation Sciences, University of Health and Allied Sciences, Ho PMB 31, Ghana
5. Department of Nursing and Midwifery, Faculty of Health and Allied Sciences, Pentecost University, Accra P.O. Box KN 1739, Ghana
6. Department of Community Health, School of Public Health, Amref International University, Nairobi P.O. Box 27691-00506, Kenya
7. College of Nursing, Midwifery, and Healthcare, University of West London, Paragon House, Boston Manor Road, Brentford TW8 9GB, UK
8. Berlin School of Business and Innovation, Academic Affairs, 97-99 Karl Marx Strasse, 12043 Berlin, Germany