Erratum
After the publication of this work [1] an error was noticed in Additional file 1: Table S1 regarding the siRNA sequences, in which two siRNAs (si-L4/L5) were omitted from the figure. The updated version (now correctly added) has the sequences of si-L1/L2/L3 and the other two, si-L4/L5. Since the last two siRNAs (si-L4/L5) served as further confirmation for the original data, this update does not affect the findings or conclusions of the article. Nevertheless, we apologize for the inconvenience.
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