Funding for this research was provided by:
Supporting Centre for Clinical Research and Education
Text and Data Mining valid from 2019-09-18
Received: 19 June 2019
Accepted: 2 September 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: The Osaka University Clinical Research Review Committee approved this study (approval number: 12034). All patients provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.