OC	ovarian cancer
MOS	metal oxide semiconductor
PCA	Principal component analysis
K-NN	K-Nearest Neighbors’ algorithm
VOC	volatile organic compounds
FIGO	International Federation of Gynecology and Obstetrics
FDA	Food and Drug Administration
IRB	Institutional Review Board
WHO	World Health Organization
PC	Principal component
TP	true positive
FP	false positive
TN	true negative
FN	false negative