Footnotes

• Twitter @Viktorija__K

• Contributors VK and SL together decided to pursue this specific topic idea. VK was responsible for the researching, writing and editing. SL contributed her expertise to the write-up and was involved in the editing process.

• 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.