The mean distance from the center of foramen sphenopalatinum to the spina nasalis anterior in the left was 9.9± .mm, and that in the right was 0.7± .87mm .
The mean distance from the center of foramen sphenopalatinum to the spina nasalis anterior in the left was 9.9± .mm, and that in the right was 0.7± .87mm .
孔中心至前鼻棘距离的平均值 :左是 9 . 9± . mm ,右是 0 .7± .87mm。