Salman Khazaei
1, Hamid Salehiniya
2,3*, Mohammad Keshvari Delavar
4, Abdollah ; Abdollah Mohammadian Hafshejani
51 Department of Epidemiology and Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, IR Iran
2 Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, IR Iran
3 Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
4 Hamadan University of Medical Sciences, Hamadan, IR Iran
5 Department of Epidemiology and Biostatistics, School of Public Health, Isfahan University of Medical Sciences, Isfahan, IR Iran
*Corresponding Author: IR Iran *Corresponding author: Hamid Salehiniya, Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran. , Email:
alesaleh70@yahoo.com