致病原因

We are still woefully ignorant of the causes of this disease.

不幸的是，我们仍对这的致原因一无所知。

Objective To summarize 828 case reports of the patients with cerebellopontine angle micrurgy and research the causes of their diseases.

摘要目的总结桥小脑角变828例显微手的经验，并探讨其致原因。