qPCR analysis of mRNA expression profile for ERCC1 and PCYT1A genes on 24 lung cancer patient tissues. A. qPCR standard. The experimental data using OriGene’s ERCC1 and PCYT1A qPCR standards. A formula for copy number calculation is shown on the chart. B. qPCR lung cancer tissue expression analysis. qPCRdata on OriGene’s TissueScan lung cancer cDNA array panel (HLRT104). The data were grouped based on cancer patient stages.