1. Zoology Department, Physiology Division, Faculty of Science, Suez University, Suez, Egypt
2. Department of Zoology, Physiology Division, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
3. Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
4. Department of Medical Physiology, General Medicine Practice Program, Batterjee Medical College, Jeddah, Saudi Arabia
5. Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
6. Department of Histology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt