Footnotes

• Twitter @dr_dee_kumar, @anjan_dhar6

• Collaborators Not applicable.

• Contributors AK conducted the literature review and wrote the main draft of the manuscript. GBN, DHV and AD reviewed and edited the manuscript. All authors approved the final version of 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 AK is a trainee associate editor for FG.

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