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
于不同部位的额
围结构不同，对研究额的生理、病理，以及提高
内窥镜检查
额开放手术具有重要的参
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，开于不同部位的额围结构不同，对研究额的生理、病理，以及提高内窥镜检查额开放手术具有重要的参导意义。
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正。
