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Authors
Hasegawa, Takumi https://orcid.org/0000-0002-7349-7084
Kobayashi, Erina
Amano, Rika
Saito, Izumi
Takeda, Daisuke
Kakei, Yasumasa
Kimoto, Akira
Sakakibara, Akiko
Akashi, Masaya
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Article History
Received: 5 December 2020
Accepted: 3 February 2021
First Online: 24 February 2021
Compliance with Ethical Standards
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: Takumi Hasegawa, Erina Kobayashi, Rika Amano, Izumi Saito, Daisuke Takeda, Yasumasa Kakei, Akira Kimoto, Akiko Sakakibara, Masaya Akashi declare that they have no conflict of interest.
: Due to the retrospective nature of this study, informed consent is not required. Instead, we published the information of this study and granted the occasions of refusing to participate in this study. This retrospective study has been conducted in full accordance with the World Medical Association Declaration of Helsinki and was approved by the Institutional Review Board of Kobe University Graduate School of Medicine.
