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Weighted UniFrac distance analysis: Distance from the donor fecal microbiota of the first or second FMT. The fecal sample that was obtained 2 days before the initiation of the first FMT was analyzed as “pre” data. The time points “1 W,” “3 W,” “3 M,” and “11 M” indicate periods from the end of the first or second cycle of FMT; W week, M month
