Sakurai, Masatoshi http://orcid.org/0000-0002-6687-4136
Karigane, Daiki
Kasahara, Hidenori
Tanigawa, Tomohiko
Ishida, Akaru
Murakami, Hiroshi
Kikuchi, Masao
Kohashi, Sumiko
Article History
Received: 17 June 2018
Accepted: 8 November 2018
First Online: 15 November 2018
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.
: The study was approved by the ethics boards of the institution.