text_1: 然而 , 根据 最小 临床 重要 差异 阈值 , 我们 认为 WOMAC 评分 的 差异 不 具有 临床意义 12 , 13 .
  
text_2: however , the differences in WOMAC scores were deemed clinically unimportant on the basis of the thresholds for the minimal clinically important difference.12,13
  