Quantification of exon skipping (MED24, KMT2D) in A and B, alternative splice site utilization (BCOR, PICALM) in C and D, or mutually exclusive exons (H2AFY) in E were detected and measured by gel electrophoresis (n=3 replicates). Representative images of the gel image (middle panel), and a corresponding diagram of the event measured (bottom panel) are shown. n.s., non-significant; *, p≤0.05; **, p≤0.01; ***, p≤0.001.