Author/Authors :
Heshmati، Hashem نويسنده Department of Public Health, Golestan University of Medical Sciences, Golestan, Iran Heshmati, Hashem , Charkazi، Abdurrahman نويسنده Department of Public Health, School of Health, Golestan University of Medical Sciences, Gorgan, Iran , , Asnaashari، Rasoul نويسنده Department of Public Health, Faculty of Health, Golestan University of Medical Sciences, Gorgan, Iran Asnaashari, Rasoul , Koohsar، Faramarz نويسنده Department of Laboratory Science, Faculty of Paramedical, Golestan University of Medical Sciences, Gorgan, IR Iran ,