Horiguchi, Akio http://orcid.org/0000-0002-7678-6375
Shinchi, Masayuki
Ojima, Kenichiro
Masunaga, Ayako
Ito, Keiichi
Asano, Tomohiko
Takahashi, Eiji
Kimura, Fumihiro
Azuma, Ryuichi
Article History
Received: 15 May 2018
Accepted: 4 January 2019
First Online: 14 January 2019
Compliance with ethical standards
:
: The authors declare that they have 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.