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Authors
Umemura, Takumi https://orcid.org/0000-0003-3160-5136
Ota, Aiko
Mutoh, Yoshikazu
Norizuki, Chihiro
Mizuno, Takahito
Kozaki, Koji
Ikeda, Yoshiaki
Ichihara, Toshihiko
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Article History
Received: 14 May 2019
Accepted: 8 July 2019
First Online: 8 August 2019
Ethics approval and consent to participate
: This study was approved by the ethics committee of the Tosei General Hospital (receipt no. 769) and was performed according to the Declaration of Helsinki. The identities of the study subjects were kept confidential during data collection.
: Not applicable.
: The authors declare that they have no competing interests.
