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Authors
Tomioka, Shinichi https://orcid.org/0000-0001-8091-9866
Rosenberg, Megumi
Fushimi, Kiyohide
Matsuda, Shinya
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Funding
Funding for this research was provided by:
World Health Organization (K18003)
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Article History
Received: 4 June 2020
Accepted: 26 August 2020
First Online: 4 September 2020
Ethics approval and consent to participate
: Administrative permissions were required to access the data used in this study. The permission was granted by the DPC Research Institute.
: Not applicable.
: The authors declare that they have no competing interests.
