Footnotes

• Contributors JT led the drafting of the editorial with support from MR. CD, A C-G and CH provided insights and interviews in support of the development of a discussion paper which covered some of the same topics and which this editorial is loosely drawn from, although the focus and content of the two papers differs considerably. They also, along with MT and MR, provided guidance on the structure and content, commented on numerous drafts and provided sign off of the final version of this editorial.

• 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; internally peer reviewed.