Sun H, Huang H, Li D, Zhang L, Zhang Y, Xu J, Liu Y, Liu Y, Zhao Y. PBX3 hypermethylation in peripheral blood leukocytes predicts better prognosis in colorectal cancer: A propensity score analysis. Cancer Medicine. 2019 May 29;8(8):4001–11. doi: 10.1002/cam4.2321.