Figure 2From: A metabolic biosignature of early response to anti-tuberculosis treatment Unsupervised PCA of D0 (triangle), M1 (circle), and M6 (cross) samples from South African patients. The PCA was constructed based on MFs that were present in at least 60% of the samples for any given time point and differed in abundance between time points by at least 2 fold with a p < 0.05.Back to article page