amp	Amplification
cfChIP	Cell-free chromatin immunoprecipitation
cfDNA	Cell-free DNA
ChIP	Chromatin immunoprecipitation
CNV	Copy number variation
ctDNA	Circulating tumor DNA
ddPCR	Droplet digital PCR
EGFR	Epidermal growth factor receptor
Ex19del	Deletion of exon 19
H3K36me3	H3 lysine 36 trimethylation
MAF	Mutational allele fraction
mEGFR	Mutant EGFR
NGS	Next-generation sequencing
NSCLC	Non-small cell lung cancer
OS	Overall survival
PD	Progressive disease
PR	Partial response
PFS	Progression-free survival
SD	Stable disease
TKI	Tyrosine kinase inhibitor