 If the patient consents, during their endoscopy at time of FMT biopsy of intestinal tissue will be performed. The tissue samples will be collected in culture medium and stored at 4 0C until delivered to the lab in UCC. Microbiota composition analysis will be performed by direct pyrosequencing of 20,000-40,000 16S rRNA gene amplicons per subject Pubmed: 20571116. Sequence generation and analysis performed by the UCC bioinformatics team will determine the composition of the microbiota of individuals. 