Sugiyama, Keiji
Shiraishi, Kazuhiro
Sato, Mariko
Nishibori, Riko
Nozawa, Kazuki
Kitagawa, Chiyoe
Article History
Accepted: 7 September 2020
First Online: 12 September 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Institutional Review Board (No. 2020-002).
: The need for informed consent was waived owing to the retrospective nature of the study. An opt-out option was provided instead.
: Not applicable.