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Metabonomics OPLS score plot, (a) CHB compared to normal group; (b) the comparison of EZ, DZ, and WZ; (c) EZ compared to WZ; (d) DZ compared to WZ. CHB means chronic hepatitis B group which includes excess ZHENG groupes, deficiency ZHENG group and WZ patients. EZ represents excess ZHENG patients groupes, DZ represents deficiency ZHENG patients group and WZ represents patients with not-obvious ZHENG characters.
