Footnotes

• Contributors All authors made substantial contributions to the conception and design of the editorial and the workshop that motivated it. SKS and EE: drafted the editorial; all authors revised it for important intellectual content. All authors gave final approval of the version to be published.

• 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.

• Disclaimer The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or the Department of Health and Human Services.

• Competing interests None declared.

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