Dave, Maneesh A randomised trial of sheathed versus standard forceps for obtaining uncontaminated biopsy specimens of microbiota from the terminal ileum. [electronic resource] - Gut Aug 2011 - 1043-9 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1468-3288 Standard No.: 10.1136/gut.2010.224337 doi Subjects--Topical Terms: Bacteria--geneticsBiopsy--instrumentationColonoscopesColonoscopyDNA, Bacterial--analysisHumansIleum--cytologyMetagenomePolymerase Chain ReactionPolymorphism, Restriction Fragment LengthProspective StudiesReproducibility of ResultsSurgical Instruments--standards