Sakai, Noriyuki http://orcid.org/0000-0003-4034-5815
Tabei, Katsuyuki
Sato, Jiro
Imae, Toshikazu
Suzuki, Yuichi
Takenaka, Shigeharu
Yano, Keiichi
Abe, Osamu
Article History
Received: 15 March 2018
Revised: 9 June 2018
Accepted: 19 June 2018
First Online: 9 July 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Noriyuki Sakai.
: 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.
: Institutional review board approval was obtained.
: • retrospective• observational and experimental• performed at one institution