Footnotes

• Twitter @SimranSinghMD

• Contributors Both authors have contributed meaningfully to this manuscript and approve of the manuscript as submitted.

• 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 Commissioned; internally peer reviewed.

• Author note References which include a * are considered to be key references.