2.5. Fecal DNA Extraction and 16S rRNA Gene Sequencing
Fecal DNA was extracted according to previously described methods [Following the removal of sequences that aligned with data from the Genome Reference Consortium human build 38 (GRCh38) and phiX reads from the raw Illumina paired-end reads, the remaining sequences were analyzed using the QIIME2 software package version 2017.10 (