1. Department of Anatomy, Almansoura University, Egypt
2. Department of Anatomy, Almadinah Almunawarah, Taibah University, Saudi Arabia
3. Department of Obstetrics and Gynecology, Zagazig University, Zagazig, Egypt
4. Department of Obstetrics and Gynecology, Almadinah Almunawarah, Taibah University, Saudi Arabia
5. Department of Anatomy, Amaarefa College of Medicine, Riyadh, Saudi Arabia