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Declaration of funding
This editorial was written independently and received no professional help.
Acknowledgement
We thank Ms Michiko Yamane in Kansai Electric Power Hospital for her secretarial assistance.
Declaration of financial/other relationships
N.T. has disclosed that he has no significant relationships with or financial interests in any commercial companies related to this study or article. T.K. has disclosed that he has received consulting and/or speaker fees from Astellas, Boehringer Ingelheim, Sanofi, Novo Nordisk, MSD, Takeda, Kowa, Tanabe Mitsubishi, Kaken Pharm, AstraZeneca, Daiichi-Sankyo, and Kyowa Kirin; he has also received clinical commissioned/joint research grants from Boehringer Ingelheim, Novo Nordisk, Merck, Sharp and Dohme, Takeda, Ono Pharm, Eli Lilly, Teijin, and Sanofi. Y.S. has disclosed that he has received consulting and/or speaker fees from Eli Lilly, Sanofi, Novo Nordisk, GlaxoSmithKline, Taisho Pharmaceutical, Astellas Pharma, BD, Boehringer Ingelheim, Johnson & Johnson and Takeda.
The CMRO peer reviewer on this manuscript has no relevant financial or other relationships to disclose.