[1] Sophie Laffont and Fiona Powrie are in the Translational Gastroenterology Unit,Nuffield Department of Clinical Medicine
[2] John Radcliffe Hospital,undefined
[3] University of Oxford,undefined
[4] Oxford OX3 9DU,undefined
[5] and at the Sir William Dunn School of Pathology,undefined
[6] Oxford,undefined
[7] UK. fiona.powrie@path.ox.ac.uk,undefined