Fig. 12

PCA score plots (Biogenic Amines) of (A) Urine, (B) Stool, and (C) Serum before feature selection using the PLS_Toolbox software (Version 9.0; Eigenvector Research, Manson, WA).

PCA score plots (Biogenic Amines) of (A) Urine, (B) Stool, and (C) Serum before feature selection using the PLS_Toolbox software (Version 9.0; Eigenvector Research, Manson, WA).