1. African Population and Health Research Center Nairobi Kenya
2. National Centre for Naturopathic Medicine, Faculty of Health Southern Cross University Lismore New South Wales Australia
3. Department of Health Economics and Health Services Research University Medical Center Hamburg‐Eppendorf, Hamburg Center for Health Economics Hamburg Germany
4. Department of Geography and Rural Development Kwame Nkrumah University of Science and Technology Kumasi Ghana
5. Department of Mathematics Kwame Nkrumah University of Science and Technology Kumasi Ghana
6. Department of Physical Education and Sport Sciences, Faculty of Literature and Human Sciences Lorestan University Khoramabad Iran
7. Department of Social Work University of Ghana Legon Ghana
8. Department of Sociology and Social Policy Lingnan University Hong Kong China