VEGF is a potent angiogenic factor that has been shown to be overexpressed in breast, colorectal, lung, pancreatic, ovarian, and cervical cancers,1, 10where it promotes the formation of new blood vessels, and is essential for the growth, invasion, progression, and metastasis of tumour tissue.10Several of the studies included in this analysis demonstrated increased VEGF levels in cancer patients versus healthy controls.9, 15, 16, 21, 22. Here, VEGFA is linked to cancer.