SBF2 and breast cancer: The relation between SBF2-AS1 expression and clinicopathological features of BC patients was analyzed, the results (Table 3) unveiled that: the mean value of relative expression of SBF2-AS1 in BC tissues was taken as the demarcation line, the 50 BC tissues were divided into the SBF2-AS1 high expression group (n = 39) and the SBF2-AS1 low expression group (n = 11).