Nishiwaki, Noriyuki
Noma, Kazuhiro http://orcid.org/0000-0002-5584-3908
Matsuda, Tatsuo
Maeda, Naoaki
Tanabe, Shunsuke
Sakurama, Kazufumi
Shirakawa, Yasuhiro
Fujiwara, Toshiyoshi
Article History
Received: 22 April 2020
Accepted: 20 October 2020
First Online: 5 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Okayama University Hospital (Approval No. 1903-006).
: The requirement for informed consent from patients was waived because of its retrospective design.
: Not applicable.