英语语法分析

Objective: to study the state of proliferation and apoptotic cell death in cholesteatoma.

目的：研究中耳胆脂瘤上皮细胞增生和凋亡的状态。

Objective To treat cholesteatoma of posterior part of mesotympanum and one stage tympanoplasty.

目的观察中鼓室后部胆脂瘤并一期鼓室成形术的疗效。

The study on apoptosis of middle ear cholesteatoma epithelium has become a hotspot in recent years.

近年来，有关中耳胆脂瘤的发生与细胞凋亡状态的研究受到广泛关注。