1. 1Department of Clinical Biology, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda;
2. 2Department of Biomedical Laboratory Sciences, Faculty of Applied Fundamental Sciences, INES-Ruhengeri, Musanze, Rwanda;
3. 3Department of Internal Medicine, Kibagabaga District Hospital, Kigali, Rwanda;
4. 4Department of Obstetrics and Gynecology, Reproductive Endocrinology and Infertility Clinic, Rwanda Military Hospital, Kigali, Rwanda