Figure 4

OPLS-DA score plot of metabolic profiles of early-stage NSCLC patients and HC after unit variance (uv) scaling. (A) UHPLC-Q-TOF/MS analysis in the positive mode. (B) UHPLC-Q-TOF/MS analysis in the negative mode. (C) GC-TOF/MS analysis.
OPLS-DA score plot of metabolic profiles of early-stage NSCLC patients and HC after unit variance (uv) scaling. (A) UHPLC-Q-TOF/MS analysis in the positive mode. (B) UHPLC-Q-TOF/MS analysis in the negative mode. (C) GC-TOF/MS analysis.