Footnotes

• Twitter @KhuranaBharti

• Contributors All authors in this paper have appropriately contributed to the manuscript preparation.

• 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 for publication Not required.

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

• Data availability statement There are no data in this work.