1. Department of Chemical Pathology, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.
2. Department of Medical Rehabilitation, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.
3. Department of Medicine, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.
4. Department of Demography and Social Statistics, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.