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      <subfield code="a">Mercado-Sáenz, Silvia</subfield>
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      <subfield code="a">Gil-Carmona, Luisa</subfield>
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      <subfield code="a">The microbiota of the colon and rectum is the most abundant and diverse of the human body, with a density of up to 1-2 kg of weight and a diversity that exceeds a thousand species. &#xd;
Metagenomics can be defined as the application of modern genomic techniques for the direct study of communities of microorganisms in their natural environment&#xd;
The aim of this study is to prove the usefulness of new technologies based on metagenomics, such as the XGN-MBI assay to realize gut microbiota studies.</subfield>
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