Onodera, Tomohiro http://orcid.org/0000-0002-4308-174X
Nakano, Hiroaki
Homan, Kentaro
Kondo, Eiji
Iwasaki, Norimasa
Article History
Received: 14 December 2017
Accepted: 7 February 2019
First Online: 19 February 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of Hokkaido University Hospital (approval ID: 015–0300). Informed consent was not obtained from the participants because the IRB waived informed consent for the retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.
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