Takasaki, Kazuki
Miyamoto, Morikazu http://orcid.org/0000-0003-4763-0926
Takano, Masashi
Soyama, Hiroaki
Aoyama, Tadashi
Matsuura, Hiroko
Iwahashi, Hideki
Ishibashi, Hiroki
Sakamoto, Takahiro
Furuya, Kenichi
Article History
Received: 3 March 2019
Accepted: 2 May 2019
First Online: 9 May 2019
Compliance with ethical standards
:
: All authors declare no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
: Informed consent was not obtained because our study was a retrospective analysis.