Are all single-use laryngeal masks the same ?

所有一次性使用的喉罩是一样的吗？

Clinical observation of partial laryngectomy and reconstruction of laryngeal function .

喉部分切除术及喉功能重建术的临床观察。

Laryngectomy is done when a person has laryngeal cancer .

做了喉切除术是当一个人已喉癌。

The value of exposure recurrent laryngeal nerve in thyroidectomy .

甲状腺手术中喉返神经的显露。

Rhino laryngeal surgery has a direct bearing on the upper respiratory tract .

鼻喉部手术与上呼吸道关系密切。