Author/Authors :
Hamzavi، Yazdan نويسنده . Department of Parasitology and Mycology, Kermanshah University of Medical Sciences, Kermanshah, Iran Hamzavi, Yazdan , Ashrafabadi ، Farhad نويسنده Student Research Committee, Kermanshah University of Medical sciences, Kermanshah, Iran Ashrafabadi , Farhad , Reazaei ، Mansour نويسنده Dept. of Biostatistics, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran Reazaei , Mansour , Khazaei، Mozafar نويسنده Khazaei, Mozafar