1. Department of Pathology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia;
2. Department of Pharmacology & Biostatistics, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia;
3. Department of Physiology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia;
4. College of Medicine, Alfaisal University, Riyadh, Saudi Arabia;
5. Department of Anatomy & Genetics, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia;
6. Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia; and
7. School of Biosciences, Cardiff University, Cardiff, United Kingdom