Funding for this research was provided by:
Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant-in-Aid for Scientific Research ((C)16K34567 (2015-2018))
Terumo Foundation for Life Sciences and Arts (2019)
Japanese Foundation for Research and Promotion of Endoscopy (2020)
Received: 10 April 2023
Accepted: 23 June 2023
First Online: 10 July 2023
: The protocol of this study was approved by the Institutional Review Board of Ehime University (No, 1611007). The study was performed in accordance with the ethical standards in the 1964 Declaration of Helsinki.
: All authors declare that they have no conflict of interest.