Figure 5: Mean gene expression (ΔΔCq) of differential profiles obtained from both hospitals and both collection methods, respectively, with all tissue samples.
From: The focus on sample quality: Influence of colon tissue collection on reliability of qPCR data

Dark red: collection to PAXgene Tissue System in hospital A, light red: snap-freezing in hospital A, dark blue: collection to PAXgene Tissue System in hospital B, light blue: immediate freezing in hospital B.