DLK1 and neoplasm: The functional relevance of CNA was also assessed by in silico analysis, and CNA status was found to be correlated with protein expression (DLK1, p = 0.01), tumour size (DLK1, p = 0.04), and tumour staging (AIFM3, p = 0.01 and DLK1, p = 0.05).