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Venn diagram of lean and obese patients with non-alcoholic fatty liver disease (NAFLD) before and after fecal microbiota transplantation (FMT). A total of 654 operational taxonomic units (OTUs) were detected in the four groups, of which 101 OTUs were shared by B1 and B2 and 135 OTUs were shared by C1 and C2. One hundred ninety-seven different OTUs were found between C1 and B1, while 175 OTUs were detected in C2 and B2.
