Funding for this research was provided by:
Japan Society for the Promotion of Science (24791611)
Article History
Received: 23 November 2017
Accepted: 20 June 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: Ethical approval for this study (approval number: B120510058) was provided by the Ethics Committee of Yokohama City University Hospital, and written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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