Kubo, Yoshitaka http://orcid.org/0000-0001-8378-6974
Koji, Takahiro
Kondo, Ryushi
Yoshida, Kenji
Ogasawara, Kuniaki
Article History
Received: 19 December 2017
Accepted: 8 January 2018
First Online: 29 January 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.This article does not contain any studies with human participants or animals performed by any of the authors.