Yoshii, Ichiro http://orcid.org/0000-0002-9123-4624
Sawada, Naoya
Article History
First Online: 8 July 2020
Compliance with ethical standards
:
: The authors declare that no funding was received for this study.
: Ichiro Yoshii and Naoya Sawada have no conflicts of interest to declare relevant to the contents of this article.
: This study was approved by our institution’s Ethics Committee (approval number Y-RA-2019-5) in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. In addition, anonymity was ensured for all patients and their families who participated in this study, and no names and/or addresses were issued that could help identify these individuals. Moreover, all patients were informed of the purpose and possible consequences of this study (i.e. that this was a retrospective study in clinical practice without any experimentation on subjects).
: The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.