To validate the clinical accuracy of LiquidHALLMARK for SNV and INDEL variant calls, 355 lung cancer specimens received for clinical testing were concurrently analyzed for 10 specific EGFR mutations, including exon 19 deletions, L858R, T790M, G719X, and L861Q, using a reference allele-specific PCR (AS-PCR) method [28]. Here, EGFR is linked to lung cancer.