Funding for this research was provided by:
British Columbia Lung Association
Canada Excellence Research Chairs, Government of Canada
Institute of Circulatory and Respiratory Health
Michael Smith Foundation for Health Research
Received: 25 March 2019
Accepted: 22 July 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: Not applicable.
: All authors have contributed to this study and approve its submission.
: The authors declare that they have no competing interest.