Fig. 2From: A preliminary metabolomics study of the database for biological samples of schizophrenia among Chinese ethnic minoritiesPrincipal Component Analysis (PCA) for Miao and Han Populations: (A) PCA of the positive ion mode for the SCZ and healthy groups of the Miao ethnicity; (B) PCA of the negative ion mode for the SCZ and healthy groups of the Miao ethnicity; (C) PCA of the positive ion mode for the SCZ and healthy groups of the Han ethnicity; (D) PCA of the negative ion mode for the SCZ and healthy groups of the Han ethnicity. QC refers to the quality control sampleBack to article page