1. Department of Pathology, Shiraz Medical School, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
2. Department of Pathology, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
3. Department of Pediatric Hepatology and Gastroenterology, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
4. Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.