英语语法分析

Objective to explore diagnosis and countermeasure of tracheomalacia in thyroidectomy.

目的探讨甲状腺切除术中气管软化的诊断及对策。

Objective To evaluate the effect and safety of modified procedure subtotal thyroidectomy.

目的评价改良甲状腺大部分切除术的效果与安全性。

Also, risk factors associated with disease progression following thyroidectomy are not yet defined.

而且，甲状腺切除术后与肿瘤进展相关的危险因素迄今为止并不确定。