Funding for this research was provided by:
Toranomon Hospital (2018-2019)
Text and Data Mining valid from 2019-06-12
Received: 7 March 2019
Accepted: 17 May 2019
First Online: 12 June 2019
Compliance with Ethical Standards
: The Institutional Review Board of Toranomon Hospital approved this study protocol (No. 1438).
: The authors declare that they have no conflicts of interest.