1. Faculty of Medicine and Biomedical Sciences, Department of Internal Medicine and Specialties, University of Yaoundé I, Yaoundé, Cameroon
2. Endocrinology and Metabolic Diseases Unit, Yaoundé Central Hospital, Yaoundé, Cameroon
3. Institut Supérieur de Technologie Médicale de Yaoundé Nkolndom, Yaoundé, Cameroon
4. Urology and Andrology Unit, Yaoundé Central Hospital, Yaoundé, Cameroon
5. Faculty of Medicine and Biomedical Sciences, Department of Physiological Sciences and Biochemistry, University of Yaoundé I, Yaoundé, Cameroon