Funding for this research was provided by:
Japan Society for the Promotion of Science (KAKENHI 20K08056 and 17K16482)
Received: 5 February 2021
Accepted: 22 March 2021
First Online: 31 March 2021
: This study was registered on the University Hospital Medical Information Network (UMIN 000026587) and was approved by the ethics committees of Keio University and its affiliated hospitals (No. 20160385).
: Each patient provided written informed consent to analyze and publish his/her data.
: M.J. has received a grant from Canon Medical Systems. However, Canon Medical Systems was not involved in the design and conduct of the study, in the collection, analysis, and interpretation of the data, or in the preparation, review, and approval of the manuscript. The remaining authors have no conflicts of interest to declare.