text_1: 然而 , 尽管 PCI 组的围 手术 期 不良 事件 ( 30 日内 ) 发生率 较 低 , 但 CABG 组在 术后 30 日至 3 年间 的 不良 事件 较 少 .
  
text_2: however , although the incidence of periprocedural adverse events ( within 30 days ) was lower in the PCI group , patients in the CABG group had fewer adverse events between 30 days and 3 years after the procedure .
  