Funding for this research was provided by:
Japan Society for the Promotion of Science (18K07194, 19K09115, 19K09114)
Accepted: 20 May 2020
First Online: 3 June 2020
Compliance with ethical standards
: K. Muro is on the advisory board meeting for Bristol-Myers Squibb and Nippon Kayaku Co, Ltd.
: This study was approved by the ethics committee of the University of Tokyo (P2015038-11X).
: Written informed consent was obtained from all patients.