其中A组30例患者在取出鼻腔填塞物后于前鼻孔放置棉球以减少鼻腔通气；

Another 30 patients who did not receive a cotton ball placed in the anterior nostrils after removing the nasal stents in the same period were put in group B.

youdao

其中A组30例患者在取出鼻腔填塞物后于前鼻孔放置棉球以减少鼻腔通气；

Another 30 patients who did not receive a cotton ball placed in the anterior nostrils after removing the nasal stents in the same period were put in group B.

youdao