1. Department of Community Medicine, College of Health Sciences, Ladoke Akintola University of Technology (LAUTECH)/LAUTECH Teaching Hospital, Osogbo, Osun State, Nigeria.
2. Department of Preventive Medicine and Primary Care, University of Ibadan, Ibadan, Oyo State, Nigeria.
3. Department of Community Medicine, College of Health Sciences, Ladoke Akintola University of Technology, Osogbo, Osun State, Nigeria.