Footnotes

• Contributors All authors participated in the conception of the infographic. JGB-M, DBdS and MA designed the infographic. JGB-M and JDC wrote the manuscript. All authors revised and approved the final versions of both the figure and 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 None declared.

• Patient consent for publication Not required.

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