Aoki, Takeshi
Murakami, Masahiko
Koizumi, Tomotake
Matsuda, Kazuhiro
Fujimori, Akira
Kusano, Tomokazu
Enami, Yuta
Goto, Satoru
Watanabe, Makoto
Otsuka, Koji
Article History
Received: 13 July 2017
Accepted: 29 May 2018
First Online: 18 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.