Document is current

Article History

Accepted: 30 April 2021

First Online: 10 June 2021

Compliance with ethical standards

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: Kazuhiro Sase has received lecture fees from Daiichi Sankyo, Shionogi, Astellas, Novartis, Pfizer, and Bristol-Myers Squibb, outside the submitted work. Yasuhito Fujisaka has received lecture fees from AstraZeneca; Novartis; Chugai Pharmaceutical Co.; Ono Pharmaceutical; Taiho Pharmaceutical; MSD; Pfizer; Eli Lilly; Boehringer Ingelheim; Bristol-Myers Squibb; and Merck, outside the submitted work. Masaaki Shoji declares that he has no conflict of interest. Mikio Mukai has received lecture fees from Bayer, Daiichi Sankyo, Bristol Myers Squibb, and Pfizer, outside the submitted work.

: This article does not contain any studies with human or animal subjects performed by any of the authors.