1. Department of Pathology, Baoji High-tech Hospital, Baoji, China
2. Anatomy and Histology Unit, Basic Science Department, College of Medicine, Hawler Medical University, Erbil, Kurdistan Region-Iraq
3. General Histology, Basic Science Department, College of Dentistry, Hawler Medical University, Erbil, Kurdistan Region-Iraq
4. Medical Laboratory Technology Department, Health and Medical Technical College, Erbil Polytechnic University, Erbil, Kurdistan Region-Iraq
5. Department of Physiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran