Author/Authors :
Khayatan ، Mahdi Shahid Sadoughi University of Medical Sciences , Bahrevar ، Vali Department of Health Education Health Promotion - School of public health - Shahid Sadoughi University of Medical Sciences , Hosseini ، Saeed Department of biostatistics, Department of Epidemiology - Center for Healthcare Data Modeling,School of public health - Shahid Sadoughi University of Medical Sciences
