Acknowledgements:
Contributors: AA-F, LR, and APG conceived and designed the
study. AA-F and LR contributed to data collection and management. AA-F,
MA-F contributed to the analysis and interpretation of the data, and the
manuscript preparation. All authors reviewed and approved the final
version of the manuscript. AA-F led the study and is the guarantor and
the corresponding author. The corresponding author attests that all
listed authors meet authorship criteria and that no others meeting the
criteria have been omitted.
Funding: Nothing to declare
Acknowledgments: Nothing to acknowledge
Competing interests: All authors have completed the ICMJE
uniform disclosure form at www.icmje.org/coi_disclosure.pdf and declare
no external funding support. APG reports being the managing director for
Endoscope-I company. No other relationships or activities that could
appear to have influenced the submitted work.
Ethical approval: This was a retrospective observational study,
and ethical approval was waived by our institution.
Data sharing: The data that support the findings of this study
are available on request from the corresponding author.