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. Author manuscript; available in PMC: 2023 Feb 1.
Published in final edited form as: Cancer Epidemiol. 2021 Dec 3;76:102075. doi: 10.1016/j.canep.2021.102075

Figure 1.

Figure 1.

Violin plots for tryptophan, kynurenine, and the kynurenine/tryptophan ratio (KTR) for 84 glioma cases and 168 controls. Shading corresponds to analyte distributions in tertiles (light blue=lowest tertile, dark blue=highest tertile).