1. Medical Physics and Radiology Department, Faculty of Medicine, Infectious Diseases Research Center, Gonabad University of Medical Sciences , Sento road, Gonabad, Iran
2. Student of General Medicine, Faculty of Medicine, Gonabad University of Medical Sciences , Sento road, Gonabad, Iran
3. Department of Epidemiology and Biostatistics, School of Public Health; Social Determinants of Health Research Center, Gonabad University of Medical Sciences , Sento road, Gonabad, Iran