The adjacent structures of the ostia differ from each other by the different location of the ostium.The clinical significance of the ostium and the nasofrontal duct were discussed.
认为，开口于不
的额窦窦口周围结构不，对研究额窦的生理、病理，
及提高
窦内窥镜检查和额窦开放手术具有重要的参考和指导意义。
额的,额骨的The adjacent structures of the ostia differ from each other by the different location of the ostium.The clinical significance of the ostium and the nasofrontal duct were discussed.
认为，开口于不的额窦窦口周围结构不，对研究额窦的生理、病理，及提高窦内窥镜检查和额窦开放手术具有重要的参考和指导意义。
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