Fig. 1From: The gut microbiota composition in patients with right- and left-sided colorectal cancer and after curative colectomy, as analyzed by 16S rRNA gene amplicon sequencingRichness and diversity analysis of 16S rRNA gene amplicon sequences obtained from fecal samples. The Chao1 index was used to evaluate microbial richness and diversity in fecal samples between patients in the healthy control and cancer groups (*P < 0.05, **P < 0.01)Back to article page