Fig. 2From: Towards standardization of next-generation sequencing of FFPE samples for clinical oncology: intrinsic obstacles and possible solutionsThe mutations counts correlate with the pre-normalization library concentrations. Samples with highest pre-normalization library concentrations were found to harbor fewer mutations, most probably due to lower amounts of DNA degradation artifacts, while samples with lowest pre-normalization library concentrations harbored a diverse spectrum of the detectable variants (Spearman’s rank correlation −0.81; p < 1e−10)Back to article page