Mitsuboshi, Satoru
Yamada, Hitoshi
Nagai, Kazuhiko
Okajima, Hideo
Article History
Received: 29 August 2017
Accepted: 4 January 2018
First Online: 24 January 2018
Ethics approval and consent to participate
: This study was performed in accordance with the principles found in the Declaration of Helsinki and was approved by the Ethics Committee of Kaetsu Hospital (Permit Number: H29-004).
: Not applicable
: The authors declare that they have no competing interests.
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