1. Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Department of Medical Parasitology and Mycology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. University of Cologne, Medical Faculty and University Hospital, Cologne 50931, Germany
5. Department of Basic and Clinical Sciences, Nicosia University Medical School, Nicosia, Cyprus