In the dataset of DM1 and control adult frontal cortex samples, we did not observe similarly strong correlations between the inclusion rates of the 34 DM1-relevant developmental splice events and the expression levels of CELF1 and MBNL1/2 (Figure 4 and Supplementary Figure S9, examples in Supplementary Figure S10B). This evidence concerns the gene CELF1 and myotonic dystrophy type 1.