Funding for this research was provided by:
Japan Society for the Promotion of Science (Bilateral program, and JSPS KAKENHI Grant Numbers: 17K19611.)
Ministry of Health, Labour and Welfare (20EA1027)
Daiwa Securities Health Foundation
Foundation for Promotion of Cancer, Research in Japan
Received: 7 May 2020
Accepted: 17 December 2020
First Online: 7 January 2021
Consent for publication
: This study was approved by the ethics committee of Keio University Hospital (20070081). Informed consent was taken from all individual participants, and the study was performed in accordance with the Declaration of Helsinki.
: The authors declare no conflicts of interest regarding this manuscript.