1. Biochemistry Department, Faculty of Medicine, Najran University, Najran 664621, Saudi Arabia
2. Faculty of Medicine, University of Khartoum, Khartoum P.O. Box 102, Sudan
3. Faculty of Medicine, Gadarif University, Gadarif 32211, Sudan
4. Department of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah 56219, Saudi Arabia