1. Department of Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia
2. Department of Clinical Science, Family Medicine, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
3. Institute of Cardiovascular Sciences, College of Medicine and Dental Sciences, University of Birmingham, Birmingham, UK
4. Department of Internal Medicine, College of Medicine, King Khalid University, Abha, Saudi Arabia
5. Departments of Medical Histology, Kasr al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
6. Department of Medical Pharmacology, Kasr al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
7. Department of Physiology, Kasr al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
8. Department of Basic Medical Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia