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Fold change in concentrations of (A) Bacteroides species, (B) Bifidobacterium species, (C) Clostridium species, (D) E. coli, and (E) Lactobacillus species in fecal samples from D-IBS patients and healthy controls using qPCR. A significant increase in the levels of Lactobacillus species was detected in fecal samples from D-IBS patients (** P = 0.02).
