1. Department of Internal Medicine, School of Medicine, Mashhad University of Medical Sciences
2. Department of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences
3. Clinical Research Development Unit, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences
4. Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences
5. The Research Institute of Biotechnology, Ferdowsi University of Mashhad
6. Mashhad Pathobiology Lab
7. Department of Hematology & Oncology, Ghaem Hospital, Mashhad University of Medical Sciences
8. Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences
9. Poursina Hakim Digestive Diseases Research Center, Isfahan University of Medical Sciences