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Authors
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Funding
Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science and Technology (18H02514, 19H05341)
Japan Agency for Medical Research and Development (JP19fk0310115, JP20km0405211)
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Article History
Received: 15 September 2020
Accepted: 12 April 2021
First Online: 26 April 2021
Declarations
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: The authors declare that they have no conflict of interest.
: This study was performed in accordance with the principles of the Declaration of Helsinki. Approval was obtained from the Ethics Committee of the Yahoo! Japan Corporation.
: Informed consent to participate in the study was obtained from all participants.
: Informed consent for publication in the study was obtained from all participants.
