Funding for this research was provided by:
Health Research Council of New Zealand (ND 19/667, 17/013)
Royal Australasian College of Physicians
Maurice and Phyllis Paykel Trust
Taranaki Medical Foundation
Received: 14 April 2021
Accepted: 4 August 2021
First Online: 18 August 2021
: Ethical approval to conduct the study was approved by the Northern B Health and Disability Ethics Committee (number 19/NTB/215).
: Not applicable.
: The authors have no competing interests to declare.