1. Department of Internal Medicine, College of Medicine, Taif University, Taif, Saudi Arabia
2. Diabetic Center, Prince Mansour Military Community Hospital, Taif, Saudi Arabia
3. King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
4. King Abdullah International Medical Research Center KAIMRC, Riyadh, Saudi Arabia
5. King Abdulaziz Medical City, Saudi Arabia
6. Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
7. Department of Pediatrics, College of Medicine, Taif University, Taif, Saudi Arabia
8. Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt
9. Department of Microbiology and Immunology, College of Medicine, Taif University, Taif, Saudi Arabia
10. Immunology Section, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt