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Gut microbiota Chao1 index and Shannon index(α diversity) among healthy infants (HC;blue), patients with WS before therapy (BT; orange) and after therapy (AT; green). a Chao1 index shows the number of possible taxa; b Shannon index shows how even the distribution of taxonomy composition. There was no difference in both chao1 index (P = 0.90, calculated by the Kruskal-Wallis Test) and Shannon index (P = 0.61) among HC, BT and AT groups
