Funding for this research was provided by:
Intramural Research Fund (25-3-1)
Grant-in-Aid for Clinical Research from the National Hospital Organization
Received: 6 July 2019
Accepted: 19 September 2019
First Online: 8 October 2019
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: The study was conducted according to the principles of the Declaration of Helsinki and the Good Clinical Practice guidelines, and it was approved by the ethics committee of NHO Osaka Toneyama Medical Center (approval number, 1424). All patients gave written informed consent.
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