Abe, Atsushi http://orcid.org/0000-0001-8215-2769
Hayashi, Hiroki
Ishihama, Takanori
Furuta, Hiroshi
Article History
Received: 20 April 2020
Accepted: 11 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: All procedures were performed in accordance with the ethical standards of the institutional and/or national research committee and in line with the 1964 Declaration of Helsinki. The present retrospective cohort study was approved by the Nagoya Ekisaikai Hospital Institutional Review Board (approval number 2019–046). The ethics committee approved the procedure of this study and gave us administrative permissions to access the data used in this study. The study was conducted in accordance with the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement guidelines for reporting observational studies.
: Not applicable.
: The authors declare that they have no competing interests.