Footnotes

• Contributors The initiation of this letter arose from a collaborative discussion among all authors. KKS drafted the manuscript, with AS, GJH and SS providing significant insights and reviewing the content.

• 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.

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