1. Department of Pathology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
2. Department of Veterinary Medicine, College of Agricultural and Veterinary Medicine, Qassim University, Buraidah, Saudi Arabia
3. Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah, Saudi Arabia
4. Department of Pathology, Postgraduate Medical College, University of Khartoum, Khartoum, Sudan
5. Department of Medical Biochemistry, College of Medicine, Qassim University, Buraidah, Saudi Arabia