致病原因

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

不幸的是，我们仍对这种疾病的致病原因一无所。

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

要目的总结桥小脑角病变828显微手的经验，并探讨其致病原因。