BRD4 and acute myeloid leukemia: The expected overall survival rate of high BRD4 expression in patients with AML was lower than that of patients with low expression, according to the R2 database (https://hgserver1.amc.nl/cgi-bin/r2/main.cgi, Figure 1(b)) and the GEPIA database (http://gepia.cancer-pku.cn/index.html, Figure 1(c)).