Kurotani, Kayo
Shinsugi, Chisa https://orcid.org/0000-0002-8667-0237
Takimoto, Hidemi https://orcid.org/0000-0002-2751-8710
Article History
Received: 28 March 2020
Revised: 3 September 2020
Accepted: 26 October 2020
First Online: 10 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was conducted in accordance with the Ethical Guidelines of Epidemiological Research. This study was exempt from the application of these guidelines because anonymized data was only used in this study.