Sako, Akahito http://orcid.org/0000-0002-2555-1293
Yasunaga, Hideo
Matsui, Hiroki
Fushimi, Kiyohide
Yanai, Hidekatsu
Gu, Yoshiaki
Ohmagari, Norio
Funding for this research was provided by:
Research on Policy Planning and Evaluation from the Ministry of Health, Labour and Welfare, Japan (H30-Policy-Designated-004 and H29-Policy-General-004)
National Center for Global Health and Medicine (29-shi-2002)
Article History
Received: 5 March 2020
Accepted: 24 September 2021
First Online: 9 October 2021
Declarations
:
: The requirement for informed consent was waived because this study was a retrospective study of administrative data and data was anonymised before its use. The Institutional Review Board at The University of Tokyo approved the study.
: Not applicable.
: The authors have no conflicts of interest to disclose.