Ethics approval and consent to participate
Written informed consent for study participation was obtained from each
subject according to local institutional policy at Royal Prince Alfred
Hospital, Sydney, Australia (Protocol X15-0454 and HREC/11/RPAH/444), St
Vincent’s Hospital, Sydney, Australia (HREC/13/SVH/145), Westmead
Hospital, Sydney, Australia (HREC/14/WMEAD/324(4081)), Oxford Centre for
Histopathology Research (16/A019 and18/A064) and Oxford GI Biobank
(REC16/YH/0247),Oxford, United Kingdom and Liverpool Hospital,
Liverpool, United Kingdom (12/NW/0525).