内科的"科" 用英语怎么说

问题描述:

内科的"科" 用英语怎么说
就是写作文 ,写到【没有全科精通的医生,医生们有自己专长的“科”(就是这个字)】用英语怎么说?

In fact,there are no doctors can master all kinds of diseases,most of them is the specialist in their own subject .或(they have their own speciality)