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Authors
Hisada, Hiroyuki
Takahashi, Yu
Kubota, Manabu
Shimura, Haruhisa
Itobayashi, Ei
Shimura, Kenji
Nakamura, Akira
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Article History
Received: 16 December 2020
Accepted: 26 April 2021
First Online: 1 May 2021
Declarations
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: This study was approved by the institutional review board of Asahi General Hospital (approval no. 2019031914). The requirement of written informed consent was waived due to the use of anonymous data, the retrospective and observational study. Instead of obtaining informed consent, information about the study, and the option to drop out was provided to the participants on the website of Asahi General Hospital. This study was performed in accordance with the standards of the Declaration of Helsinki and the current ethical guidelines.
: The patients have consented to the submission of the report to the journal.
: The authors declare that they have no competing interests.
