1. Department of Population and Behavioural Sciences, School of Public Health, University of Health and Allied Sciences, Ho, Ghana
2. Department of HIV prevention, HIV/AIDS Prevention Research Network Cameroon, Kumba, Cameroon
3. Department of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
4. Department of Epidemiology and Biostatistics, School of Public Health, University of Health and Allied Sciences, Ho, Ghana