1. Department of Microbiology Faculty of Medicine Iran University of Medical Sciences Tehran Iran
2. Department of Laboratory Sciences School of Allied Medical Sciences Ilam University of Medical sciences Ilam Iran
3. Department of Medical Microbiology Charles University2nd Faculty of Medicine and Motol University Hospital Prague Czech Republic
4. Clinical Microbiology Research Center Ilam University of Medical Sciences Ilam Iran
5. Golestan Research Center of Gastroenterology and Hepatology Golestan University of Medical Sciences Gorgan Iran
6. Laboratory Sciences Research Center Golestan University of Medical Sciences Gorgan Iran