Funding for this research was provided by:
Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (18H02763)
Text and Data Mining valid from 2019-03-19
Received: 23 January 2019
Accepted: 6 March 2019
First Online: 19 March 2019
Ethics approval and consent to participate
: The protocol of this study was approved by the Ethics Committee of University of Fukui, Faculty of Medical Sciences (#20170225). Written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.
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