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Contributors AG conceived of the project. AL wrote the first draft. KH, AG and AL were equally responsible for suggesting changes to the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests AG is an Unpaid Director/Chair of the non-profit organisation 'King’s John Price Paediatric Respiratory Conference' and 'Paediatric Respiratory Academy CIC'.
Provenance and peer review Not commissioned; internally peer reviewed.