AUC	Area under the receiver operating characteristic curve
BC	Breast cancer
cfDNA	Cell-free DNA
CTC	Circulating tumor cell
ctDNA	Circulating tumor DNA
ddPCR	Digital droplet polymerase chain reaction
ELISA	Enzyme-linked immunosorbent assay
EVs	Extracellular vesicles
HILIC	Hydrophilic interaction liquid chromatography
lncRNA	Long non-coding RNA
MALDI-TOF-MS	Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
miRNA	MicroRNA
MSP	Methylation-specific polymerase chain reaction
NGS	Next-generation sequencing
RT-qPCR	Reverse transcription quantitative polymerase chain reaction
SDS-PAGE	Sodium dodecyl sulfate polyacrylamide gel electrophoresis
SRM	Selected reaction monitoring
SWATH	Sequential window acquisition of all theoretical fragment ion spectra
TNBC	Triple-negative breast cancer
WB	Western blot