1. Department of Cytopathology; Dr. Daneshbod Pathology Laboratory; Shiraz Iran
2. Department of Pathology; School of Veterinary Medicine; Shiraz University; Shiraz Iran
3. Department of Pathology; School of Veterinary Medicine; Shahrekord University; Shahrekord Iran
4. Shefa Neuroscience Research Centre; Khatam Alanbia Hospital; Tehran Iran
5. Department of Otolaryngology; Shiraz University of Medical Sciences; Shiraz Iran
6. Hospital and University of Notre Dame Medical School, Sydney, N.S.W; Australia