英语语法分析

The high incidence of diarrhea was encountered following truncal vagotomy.

迷走神经干切断术后的腹泻发生率高。

The bradycardiac effect was significantly attenuated by bilateral vagotomy (P<0.01).

双侧迷走神经切断后，降心率作用减弱（P<0.01）。

All types of vagotomy cause an increase of basal and postprandial serum gastrin levels.

所有类型的迷走神经切断术，均产生空腹和餐后血清促胃液素水平的升高。