Accepted: 16 November 2020
First Online: 18 January 2021
: S.Ko. received research funding from Ono Pharmaceutical and Bristol-Myers Squibb outside this study. H.N. received honoraria and research funding from Ono Pharmaceutical, Chugai Pharmaceutical, MSD and Bristol-Myers Squibb, and research funding from Taiho Pharmaceutical, Daiichi-Sankyo, Kyowa Kirin, Zenyaku Kogyo, Oncolys BioPharma, Debiopharma, Asahi-Kasei, Sysmex, Fujifilm, SRL, Astellas Pharmaceutical, Sumitomo Dainippon Pharma and BD Japan outside this study. All other authors declare no competing interests.