Funding for this research was provided by:
New Zealand Society of Gastroenterology
Otago Medical Research Foundation
Healthcare Otago Trust
Received: 25 October 2021
Accepted: 26 January 2022
First Online: 10 February 2022
: This research proposal was approved by the New Zealand Health and Disability Ethics committee (registration code: 13/STH/155/AM02) and was performed according to the principles of the Declaration of Helsinki. Biopsies were collected after informed consent had been obtained. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.