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Authors
Ono, Sachiko
Ishimaru, Miho
Ida, Yusuke
Yamana, Hayato
Ono, Yosuke
Hoshi, Kazuto
Yasunaga, Hideo
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Article History
Received: 22 March 2021
Accepted: 5 October 2021
First Online: 18 October 2021
Declarations
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: This study was approved by the Institutional Review Board of the University of Tokyo (no. 2019308NI). They determined that formal consent was not required for this study as human participants were not directly involved. However, we provided an opportunity to the individuals whose data were included in the study to opt out of the study through an Internet announcement.
: Not applicable.
: The authors declare that they have no competing interests.
