Heidari M, Farshad A, Shafaei Gholami P. Assessment of the human error role on work accidents and the effect of education, involvement and workerbehaviourmonitoring on accident frequency and severity in Petrokaran Company. ioh 2005; 2 (1) :57-62 URL: http://ioh.iums.ac.ir/article-1-83-en.html