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Authors
Itou, Junya
Kuwashima, Umito
Itoh, Masafumi
Okazaki, Ken
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Article History
Received: 17 September 2021
Accepted: 8 June 2022
First Online: 13 June 2022
Declarations
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: This study was approved by the institutional ethics committee of Tokyo Women’s Medical University (Approval No. 4952). The need for informed consent was waived by Tokyo Women’s Medical University because of the retrospective nature of this study. All procedures involving human participants were in accordance with the ethical standards of the 1964 Helsinki Declaration and its later amendments.
: Not applicable.
: K.O. received honorariums for lectures from Olympus Terumo Biomaterials. The remaining authors declare no conflicts of interest.
