Abbreviations
ANOVA: one-way analysis of variance; AUC: area under curve; cfDNA: cell-free deoxyribonucleic acid; CID: collision-induced dissociation; CPSI-MS: conductive polymer spray ionization mass spectrometry; CTC: circulating tumor cell; DESI-MS: desorption electrospray ionization mass spectrometry; DG: diacylglycerol; DT: decision tree; FDR: false discovery rate; GPC: glycerophosphocholine; HC: healthy contrast; IS: internal standard; KNN: k-nearest neighboring; LDA: linear discriminant analysis; lyso-GPC: lyso-glycerophosphocholine; ML: machine learning; MS/MS: tandem mass spectrometry; mRNA: messenger ribonucleic acid; NB: naïve Bayesian; OPLS-DA: orthogonal partial least squares data analysis; OSCC: oral squamous cell carcinoma; PML: premalignant lesion; PPV: positive prediction value; QC: quality control; ROC: receiver operating characteristic; RSD: relative standard deviation; SVM: supporting vector machine; TIC: total ion current; t-SNE: t-stochastic neighbor embedding; TPR: true positive rate; VIP: variable importance on projection;