| CTC | Circulating Tumor Cell |
| miRNA | microRNA |
| TESTBREAST | Trial Early Serum Test BREAST cancer |
| MS | Mass Spectrometry |
| TEAB | Triethylammonium Bicarbonate Buffer |
| ACN | Acetonitrile |
| SDC | Sodium Deoxycholate |
| DTT | Dithiothreitol |
| TFA | Trifluoroacetic Acid |
| LC-MS | Liquid Chromatography-Mass Spectrometry |
| RP-HPLC | Reverse-Phase High-Performance Liquid Chromatography |
| LC-MS/MS | Liquid Chromatography Tandem Mass Spectrometry |
| DDA | Data-Dependent Acquisition |
| CV | Compensation Voltages |
| AGC | Automatic Gain Control |
| HCD | Higher-Energy Collisional Dissociation |
| NCE | Normalized Collision Energy |
| LFQ | Label-Free Quantitation |
| TNBC | Triple-Negative Breast Cancer |