1. Faculty of Health, Department of Public Health , Aarhus University, Bartholins Alle 2, Building 1260, DK 8000 Aarhus C, Aarhus, Denmark
2. School of Public Health, Department of Community Health , Ensign Global College, P.O. Box AK 136, Akosombo, Eastern Region, Ghana
3. Health Economics Unit, Lund University, Medicon Village 301:5, Scheelevagen 2, 223 81, Box 117, 221 00 Lund, Sweden
4. Department of General Studies , School of Natural and Environmental Sciences, University of Environment and Sustainable Development, PMB, Somanya, Ghana
5. Department of Psychology, Institute of Policy Studies, School of Graduate Studies , Lingnan University, 8 Castle Peak Road, Lingnan, Tuen Mun, Hong Kong
6. Department of Occupational Health, School of Public Health, Kwame Nkrumah University of Science and Technology , Private Mail Bage, University Post Office, Kumasi, Ghana