Koike, Hirofumi
Sueyoshi, Eijun
Sakamoto, Ichiro
Uetani, Masataka
Nakata, Tomoo
Maemura, Kouji
Funding for this research was provided by:
JSPS KAKENHI (15K09894)
JSPS KAKENHI (24591776)
JSPS KAKENHI (26870436)
Article History
Received: 13 September 2017
Revised: 26 March 2018
Accepted: 18 April 2018
First Online: 25 May 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Eijyun Sueyoshi.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the institutional review board because this study was retrospective.
: Institutional review board approval was obtained.
: • retrospective• case-control study• performed at one institution