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Authors
Kusagawa, Shigeru
Kawana-Tachikawa, Ai
Matsubayashi, Keiji
Sobata, Rieko
Hamaguchi, Isao
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Article History
Received: 22 July 2022
Accepted: 16 June 2023
First Online: 20 June 2023
Declarations
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: All the methods followed in the study were in accordance with Declaration of Helsinki. The information of the specimens was anonymized, and a decoding index was not created. Ethical approval was obtained from the Ethical Committee of the National Institute of Infectious Diseases (No. 1082).
: Not applicable.
: The authors declare no competing interests.
