Figure 3: (a) Typical serum samples ¹H CPMG NMR spectroscopy; (b) PCA score plot of serum samples collected from different treatment groups; (c) OPLS-DA score plot of serum samples collected from the control and CAG group; (d) OPLS-DA S-plot of serum samples collected from the control and CAG group. (c) Control group, (m) Model group, (Huangqi Jianzhong Tang) Huangqi Jianzhong Tang -treated group, (YY) Huangqi Jianzhong Tang without YT-treated group, (YT) YiTang-treated group