title: Response to Dr Hahn, ANNSURG-D-12-01545.
authors.affiliation: Gastrointestinal Surgery, National Institute for Health Research Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals and University of Nottingham, Queen's Medical Centre, Nottingham, UK Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, UK.
authors.forename: Abeed H
authors.initials: AH
authors.lastname: Chowdhury
authors.forename: Dileep N
authors.initials: DN
authors.lastname: Lobo
authors.forename: Eleanor F
authors.initials: EF
authors.lastname: Cox
authors.forename: Susan T
authors.initials: ST
authors.lastname: Francis