Associations between NSCLC tumor size and (A) VEGFR3, (B) LYVE1, (C) PDPN and (D) NRP2 mRNA expression level, defined as log2(FC) NSCLC, non-small cell lung cancer; VEGF, vascular endothelial growth factor; LYVE1, lymphatic vessel hyaluronan receptor 1; PDPN, podoplanin; NRP2, neuropilin 2; FC, fold-change, difference in mRNA level between tumor and normal lung tissues.