Funding for this research was provided by:
the Ministry of Health, Labor, and Welfare of Japan (16H0526)
National Cancer Institute (R01 CA201356 R01 CA237046)
the National Institutes of Health (KL2TR002241)
Received: 6 February 2019
Accepted: 11 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: This study was approved by the Teikyo University ethics committee (TU-COI 13–208).
: Not applicable.