 SRPK0 staining intensity: 0, no staining (not shown); +0, weak; +0, moderate; or +0, high. (Right) percentage of SRPK0-positive cells in TNBC samples from US Biomax TMA: 0--00%, 00--00%, 00--00%, or 00--000%. Unpaired *t*-test with Welch's correction was used to compare the 