1. Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin 300213, Nigeria
2. Department of Biochemistry, College of Health Sciences, School of Basic Medical Sciences, Igbinedion University Okada, Benin 300251, Nigeria
3. Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University Hospital Tübingen, Tübingen 72076, Germany