text_1: 经 随机 分组 的 所有 患者 均 依照 分组 结果 被 纳入 分析 , 不 考虑 其 实际 接受 的 治疗 ( 意向 治疗 原则 ) .
  
text_2: all patients who underwent randomization were included in the analysis according to the treatment group to which they were assigned , regardless of the treatment they actually received ( intention @-@ to @-@ treat principle ) .
  