Text and Data Mining valid from 2019-11-16
Received: 27 September 2019
Accepted: 23 October 2019
First Online: 16 November 2019
Ethics approval and consent to participate
: All patients provided written informed consent. This study was approved by the institutional review board of the Suzuka University of Medical Science (Approval No.274, September 5, 2016).
: Not applicable.
: The authors declare that they have no competing interests.