Iwatsuki, Masaaki
Yamamoto, Hiroyuki
Miyata, Hiroaki
Kakeji, Yoshihiro
Yoshida, Kazuhiro
Konno, Hiroyuki
Seto, Yasuyuki
Baba, Hideo http://orcid.org/0000-0002-3474-2550
Article History
Received: 22 July 2020
Accepted: 22 September 2020
First Online: 9 October 2020
Compliance with ethical standards
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: Hiroaki Miyata and Hiroyuki Yamamoto are affiliated with the Department of Healthcare Quality Assessment at the University of Tokyo. The department is a social collaboration department supported by grants from the National Clinical Database, Johnson & Johnson K.K., and Nipro Co. None of these organizations had any role in the design and conduct of the study, data collection, data analysis, data management, data interpretation, or the preparation, review, and approval of this manuscript. This work was supported in part by a Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science, grant number 20K07594 (For M.I.).
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