VOCs	Volatile organic compounds
PCa:	Prostate cancer
PCA	Principal component analysis
CDA	canonical discriminant analysis
CVA	Cross Validated Accuracy
ROC	Receiver operator curve
VPP	Positive prognostic value
VPN	Negative prognostic value
PSA	Prostate-specific antigen
eNOSE	Electronic nose
G/LC-MS	Gas/Liquid Chromatography-Mass Spectrometry
HC	Healthy control group
UTIs	Urinary tract infections
cfDNA	Cell-free DNA
ctDNA	Circulating tumor DNA