Funding for this research was provided by:
Ministry of Health, Labour and Welfare (20AA2005, 20AA2005)
Received: 22 December 2022
Accepted: 13 January 2023
First Online: 15 February 2023
: The study was approved by the Institutional Review Board of Tohoku University, which waived the requirement for informed patient consent because of the anonymous nature of the data.
: Not applicable.
: The authors declare that they have no competing interests.