Iizumi, Sakura http://orcid.org/0000-0001-6760-152X
Shimomura, Akihiko http://orcid.org/0000-0002-2557-8170
Shimoi, Tatsunori
Sudo, Kazuki
Noguchi, Emi
Yonemori, Kan
Shimizu, Chikako
Fujiwara, Yasuhiro
Tamura, Kenji
Article History
Received: 15 November 2017
Accepted: 31 May 2018
First Online: 5 June 2018
Compliance with ethical standards
:
: The authors have declared no conflicts of interest.
: This article does not contain any interventional studies with human participants performed by any of the authors. This study was approved by the ethics committee of each participating hospital and was performed in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was not required for this study.