1. FWACP, MPH, MD, Professor of Community Medicine, Department of Community Medicine, University College Hospital Ibadan, Ibadan, Oyo State, Nigeria,
2. MBBS, MPH, FWACP, DOccMed, Lecturer and Consultant Community Physician, Department of Community Medicine, University College Hospital Ibadan, Ibadan, Oyo State, Nigeria
3. MBBS, MPH, FMCPH, Lecturer and Consultant Community Physician, Department of Community Health and Primary Care, College of Medicine, University of Lagos, Lagos State, Nigeria
4. MBBS, MSc, PhD, FWACP, FFOM, FFPH, Professor and Consultant Community Physician, Department of Community Medicine, University College Hospital Ibadan, Ibadan, Oyo State, Nigeria.