%0 Journal Article %T %J Journal of Guilan University of Medical Sciences %V 2 %N 6 %U http://journal.gums.ac.ir/article-1-2033-fa.html %R %D 1993 %K %X %> http://journal.gums.ac.ir/article-1-2033-fa.pdf %P 39-41 %& 39 %! %9 Research %L A-10-1-375 %+ %G eng %@ 2383-4307 %[ 1993