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Authors
Takagi, Kimiaki https://orcid.org/0000-0003-2774-925X
Mizuno, Masashi
Kawase, Kota
Minoshima, Kenichi
Yamaha, Masayoshi
Horie, Masanobu
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Article History
Received: 19 April 2020
Accepted: 9 July 2020
First Online: 7 August 2020
Compliance with ethical standards
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: Because of the anonymous nature of the data, the requirement for informed consent was waived. Instead of individual consent, we notified the subjects of this study by posting documents at prominent places in the hospital and guaranteed opportunities for patients to refuse to participate in research (opt-out). The study was approved by our local ethics committee (approval number: 2019022) and was conducted in accordance with the Declaration of Helsinki.
