. (1998). . (e1380). Reports, 6(3), e1380
. "" .e1380 , Reports, 6, 3, 1998, e1380.
. (1998). '', Reports, 6(3), e1380.
, "," Reports, 6 3 (1998): e1380,
. . Reports. 1998;6(3):e1380 (In Persian).