1. Department of Family and Community Medicine, Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
2. Faculty of Medicine, University of Khartoum, Khartoum P.O. Box 102, Sudan
3. Department of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah 51911, Saudi Arabia