KIF15 and neoplasm: KIF11, KIF12, KIF15, KIF23, KIF18B, KIF20A, KIF2C, KIF4A, KIFC1 expression levels were significantly upregulated while KIF17, KIF26A, KIF1C expressions were significantly downregulated in tumor samples as shown by the box-and-whisker plots in Fig. 1A–L.