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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.