1. Department of Human Physiology, Faculty of Basic Medical Sciences Madonna University Elele Rivers State Nigeria
2. Department of Human Physiology, Faculty of Basic Medical Sciences University of Calabar Calabar Cross River State Nigeria
3. Department of Biochemistry, Faculty of Sciences University of Port Harcourt Port Harcourt Rivers State Nigeria
4. Institute for Drug Research and Development, S.E. Bogoro Center Afe Babalola University Ado Ekiti Nigeria