英语语法分析

Methods The immunohistochemical methods PABC was performed in study of expression of MUC5AC in 19 pterygial specimens and 5 normal conjunctiva.

方法应用免疫组化PABC法，分别对19例翼状胬肉标本和5例正常结膜组织中的MUC5AC表达进行检测。