HIF1A and neoplasm: In contrast, the median transcript ratios of the 19 adjacent non-tumor tissues were 0.2 copies HIF-1α mRNA per HPRT mRNA copy (ranging from 0–1.6; mean 0.3) and 0.06 copies EGFR mRNA per HPRT mRNA copy (range 0–0.3, mean 0.07).