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Authors
Kikuchi, Nanae
Nakao, Hiro
Matsumoto, Yukio
Yoshida, Kazue
Okai, Masashi
Kawai, Toshinao
Kubota, Mitsuru
Ishiguro, Akira
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Article History
Received: 7 August 2020
Revised: 9 November 2020
Accepted: 10 November 2020
First Online: 24 November 2020
Compliance with ethical standards
:
: The author(s) declare that they have no competing interests.
: Parents provided written informed consent.
