Footnotes

• Contributors HG proposed the initial idea and wrote the first draft. All authors contributed equally to subsequent versions of the editorial and approved the submission of the final version.

• 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 None declared.

• Patient consent Not required.

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