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Authors
Asaka, Yukiko http://orcid.org/0000-0003-4092-522X
Sekine, Michikazu
Yamada, Masaaki
Tatsuse, Takashi
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Article History
Received: 11 August 2020
Accepted: 17 November 2020
First Online: 25 November 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the University of Toyama in 2018 (No. 28-137). Written informed consent was obtained from the respondents and their parents. All subjects participated in the study voluntarily.
: Not applicable.
: The authors declare that they have no competing interests.
