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1Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
2Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
3Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
4Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
5Department of Epidemiology and Biostatistics, Faculty of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
6Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
7Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
©2019, Korean Society of Epidemiology
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