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