Article History
Received: 22 August 2019
Accepted: 24 January 2020
First Online: 30 January 2020
Compliance with ethical standards statements
:
: Dr. Yasunori Iida and all the co-authors have no conflicts of interest associated with this study.
: The present study was approved by the institutional review board for human research of Ogikubo Hospital.
: All the patients provided written informed consent.