Figure 2From: Identification of Importin 8 (IPO8) as the most accurate reference gene for the clinicopathological analysis of lung specimensVariations of GAPDH and HPRT1 expression levels. Mean ± SEM of absolute values of ΔCt (|ΔCt| = |Ct Normal-Ct Tumor|) of the two commonly used reference genes (GAPDH and HPRT1) in paired lung clinical samples (Set A).Back to article page