| CDH1 | Cadherin 1 |
| CDKN2Ap16 | Cyclin-Dependent Kinase Inhibitor 2A/p16 |
| CGI | CpG-island |
| CLSI | Clinical and Laboratory Standards Institute |
| DMGs | differentially methylated genes |
| DNMTI | methyltransferase inhibitors |
| EGFR | epidermal growth factor receptor |
| EMT | Epithelial–mesenchymal transition |
| FFPE | formalin-fixed, paraffin-embedded |
| KRAS | KRAS proto-oncogene, GTPase |
| LC | Lung cancer |
| LINE-1 | global interspersed nuclear elements-1 |
| LoB | Limit of Blank |
| LoD | Limit of Detection |
| LoQ | Limit of Quantification |
| NSCLC | Non-small-cell lung cancer |
| RASSF1A | RAS-association domain family 1 isoform A |
| RFU | relative fluorescence units |
| SCLC | Small cell lung cancer |
| TERT | Telomerase Reverse Transcriptase |
| TKIs | tyrosine kinase inhibitors |
| WT1 | Wilms’ tumor 1 |