英语语法分析

Close endoscopic follow-up is mandatory to ensure early diagnosis and proper treatment of the recurrence of papilloma.

术后定期鼻内镜随访可确保复发肿瘤的早期发现及妥善处理。

Methods:Clinical data of 3 cases of inverted papilloma in upper urinary tract were analysed retrospectively and reviewed with related literatures.

方法：回顾性分析3例本病患者的临床资料并复习文献。

Methods Retrospectively analyze the clinical data of the 24 cases who received nasal endoscopic surgery for the treatment of nasal inverted papilloma.

方法对24例行内镜下NIP切除术并且坚持随访的患者的临床资料进行分析。