Footnotes

• Contributors AG, CT, DL and J-FB contributed to the conception of the work and the acquisition and interpretation of data. AG and CT drafted the letter. AG, CT, DL and J-FB critically revised the letter, approved the final version to be published and agree to be accountable for all aspects of the work.

• Funding Ministére de la Santé et des Services Sociaux du Québec.

• Competing interests None.

• Provenance and peer review Not commissioned; internally peer reviewed.