Author/Authors :
KHAZAEI, Salman Dept. of Epidemiology & Biostatistics - School of Public Health - Hamadan University of Medical Sciences, Hamadan , SALEHINIYA, Hamid Minimally Invasive Surgery Research Center - Iran University of Medical Sciences, Tehran , SOLTANI, Shahin Dept. of Health Management and Economics - School of Public Health - Tehran University of Medical Sciences, Tehran , MOHAMMADIAN-HAFSHEJANI, Abdollah Dept. of Epidemiology & Biostatistics - School of Public Healthv - Isfahan University of Medical Sciences, Isfahan
