Fig. 2From: Biomarker screening for antenatal depression in women who underwent caesarean section: a matched observational study with plasma Lipidomicsa Principal component analysis score scatter plots in a positive model and in a negative model. b Partial least square discriminant analysis score scatter plots of antenatal depression versus non-antenatal depression in a positive model and in a negative model. Red circle = non-antenatal depression group, green circle = antenatal depression group, blue circle = quality control samplesBack to article page