Text and Data Mining valid from 2020-02-10
Received: 6 September 2019
Accepted: 28 January 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: This study was approved by the Hamamatsu University School of Medicine Independent Ethics Committee (Permission number: 18–060). The opt-out consent was approved by the committee and obtained via our websites, where permission was requested for the use of the participants’ personal information in this study.
: Not applicable.
: The authors declare that they have no conflicts of interest or financial ties to disclose.