Funding for this research was provided by:
Finska Läkaresällskapet (-)
Helsingin Yliopisto (travel grant)
Text and Data Mining valid from 2020-03-17
Received: 16 January 2020
Accepted: 27 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: The study was approved by the Department of Gastrointestinal Surgery at Helsinki University Hospital, and ethics approval and consent to participate were not required.
: All authors approve this version for publication and are accountable for its content.
: The authors declare that they have no competing interests.