Clinicopathological and molecular features in the patient samples series.

*MSI status missing in 4 included patients#Fisher exact test if less than five cases in one of the groupsNumbers subject to rounding.Clinicopathological and molecular features in the patient samples series.纳入的4例患者缺失微卫星不稳定性（MSI）检测结果。若某一组的病例数少于5例，则采用费希尔精确检验（Fisher exact test）。数值均经四舍五入处理。本患者样本队列的临床病理及分子特征。