Funding for this research was provided by:
Canadian Institutes of Health Research (151614)
Ontario SPOR Support Unit
Received: 11 May 2021
Accepted: 12 August 2021
First Online: 14 September 2021
: The core outcome set study received research ethics board approval from the University of Ottawa, Children’s Hospital of Eastern Ontario, and all other participating centres, either directly or as part of a pre-existing cohort study.
: Not applicable.
: The authors declare that they have no competing interests.