Figure 5From: RNA pre-amplification enables large-scale RT-qPCR gene-expression studies on limiting sample amountsPre-amplification as a function of RNA quality. Correlation between the detection levels of HPRT1 and SDHA and RNA Quality Index (RQI), in pre-amplified samples in which HPRT1 (n = 702) and SDHA (n = 699) were detectable (Cq < 40).Back to article page