EGFR and neoplasm: ddPCR of cfDNA compared to tumor genotyping:EGFR Exon 19 deletion: 100% positive predictive value (PPV) and 82% sensitivityEGFR L858R: 100% PPV and 74% sensitivityEGFR T790M: 79% PPV and 77% sensitivityKRAS G12X: 100% PPV and 64% sensitivity