Nomura, Motoo http://orcid.org/0000-0002-5967-0610
Otsuka, Atsushi
Yoshimura, Michio
Nonomura, Yumi
Kaku, Yo
Matsumoto, Shigemi
Muto, Manabu
Article History
Received: 15 December 2017
Accepted: 28 February 2018
First Online: 3 March 2018
Compliance with ethical standards
:
: None of the authors have conflicts of interest to declare.
: 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.
: Informed consent was obtained from all individual participants included in the study.