Source:http://linkedlifedata.com/resource/umls/id/C1956108
NCI: A collection or collectivity of microorganisms. This entity is frequently examined to determine how changes to the surrounding environment affects biological processes and the resulting health status of the organism.,MSH: The full collection of microbes (bacteria, fungi, virus, etc.) that naturally exist within an organism as identified by their genomes regardless of whether or not they can be cultured.