Fig. 7: Top differentially expressed miRNAs.

Expression levels of miR-196a2 (A), miR-615 (B), miR-137 (C), and miR-141 (D) in each sample type. Red = cLNM, blue = paired primary tumors, light blue = matched primary tumors. All box plots include the center line at the median, the box denotes the interquartile range (IQR), whiskers denote the rest of the data distribution, and outliers are denoted by points greater than ±1.5 × IQR. Source data are provided as follows: Supplementary Data 6 provides the full results.