Author/Authors :
MOHAMMADFAM, Iraj Dept. of Occupational Hygiene - School of Public Health and Research Center for Health Sciences - Hamadan University of Medical Sciences, Hamadan , MOVAFAGH, Maryam Dept. of Occupational Hygiene - School of Public Health and Research Center for Health Sciences - Hamadan University of Medical Sciences, Hamadan , BASHIRIAN, Saeid Dept. of Health Education - Hamadan University of Medical Sciences, Hamadan