Received: 1 October 2020
Accepted: 2 March 2021
First Online: 10 March 2021
: This clinical research was approved by the University of Tokyo Institutional Review Board (IRB), approval number was 11262. Written informed consent was obtained from all participants.
: Not applicable.
: Sen Takeda: research support and reports honoraria from SHIMADZU corporation.Kiyoshi Hasegawa: research support from SHIMADZU corporation.