Footnotes

• Correction notice This article has been corrected since it published Online First. The affiliations for Prof Repici have been amended.

• Contributors All authors together wrote the paper and approved the final version.

• 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 RW: received research support from Siemens. AR: received consultancy from Medtronic and Cosmo and research support from Cosmo, Fujifilm and Pentax. RB: received research support and consultancy from Pentax, Fujifilm and Medtronic. CH: received consultancy from Medtronic and Fujifilm. PS: received consultancy from Medtronic, Olympus, Boston Scientific, Fujifilm and Lumendi and research support from Ironwood, Docbot, Cosmo Pharmaceuticals, CDx Laboratories and Erbe. TR: received research support from Olympus and Fujifilm.

• Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

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