Nakamura, Ken
Uchida, Tetsuro
Hamasaki, Azumi
Sadahiro, Mitsuaki
Article History
Received: 4 December 2018
Accepted: 17 February 2019
First Online: 26 February 2019
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Yamagata university hospital (Reference number; 2018–245).
: Not applicable
: The authors declare that they have no competing intersts.
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