BRCA2 and neoplasm: A comparison between the relative expression values for BRCA1 and BRCA2 estimated by the NanoString nCounter system and ddPCR showed a significant correlation (Figure 5C); only one tumor sample was clearly discordant, with a high BRCA2 mRNA value estimated by the NanoString nCounter system but a low value quantified by ddPCR (Figure 5C, arrow).