英语语法分析

Methods Rats were injected intradermally with 2% 5-hydroxytryptamine (5-ht) on the nape of the neck.

方法大鼠颈背部皮内注射2% 5 -羟色胺(5 - HT)建立大鼠瘙痒模型。

Methods Summarize the therapeutic effect and prognosis of 56 patients by high ligation and prick intradermally.

方法总结分析56例大隐静脉曲张采用高位结扎加皮内缝扎法治疗及预后。