1 Department of Medical Library and Information Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Hamadan, Iran.
2 Department of Knowledge and Information Science, Faculty of Psychology and Education, Kharazmi University, Tehran, Iran.
3 Department of Library and Information Sciences, Payame Noor University, Tehran, Iran.
4 Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
5 Student Research Committee, School of Paramedicine, Tehran University of Medical Sciences, Tehran, Iran.