Footnotes

• MW and KDL are joint first authors.

• Twitter @marinuswinters, @_Kristianlyng, @Sinead_Holden, @Bill_Vicenzino

• MW and KDL contributed equally.

• Contributors KDL produced the infographic with revisions provided by MW, SH, CBL, NJW, DMC, BTV, AW and MSR. All authors read and consented to the content of the infographic.

• 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; externally peer reviewed.