Funding for this research was provided by:
Received: 15 January 2020
Accepted: 9 June 2020
First Online: 29 July 2020
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (Hakata Clinic Institutional Review Board: reference numbers 1464P3CP-4 [Studies 1 and 2] and 1464P3CP-5 [Study 3]) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained in written from all individual participants included in the study.
: Not applicable.
: YK, TI, MK, TS, TN, YN, and HI are employees of Daiichi Sankyo Co., Ltd. MS, HU, and SI have no potential conflicts of interest to disclose.