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Authors
Kondo, Hiroka
Yamaguchi, Shigeki
Hirano, Yasumitsu
Aikawa, Masayasu
Sato, Hiroshi
Okamoto, Kojun
Sakuramoto, Shinichi
Koyama, Isamu
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Article History
Received: 28 March 2021
Accepted: 18 May 2021
First Online: 26 May 2021
Declarations
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: The study design was approved by the Ethics Committee of Saitama Medical University International Medical Center (approval number: 20-029). All participants provided written informed consent. The study was performed in accordance with the ethical standards of the Declaration of Helsinki (1964) and its subsequent amendments.
: Not applicable.
: The authors declare that they have no competing interests.
