Figure 1From: Decreased tryptophan metabolism in patients with autism spectrum disordersHistogram of energy metabolism in the ASD cells vs . control cells. The bar height of the histogram indicates the mean of measurements of 20 cell lines for each group; vertical bars are standard errors of the means. Star* symbol denotes level of statistical significance determined by a t test: **P <0.01; *P <0.05. The substrates were ordered according to their individual P values with the lowest on the left.Back to article page