Tanioka, T.
Masuko, H.
Yamagami, H.
Takahashi, S.
Ishizu, H.
Article History
Received: 2 August 2018
Accepted: 2 January 2019
First Online: 9 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.
: This article does not contain any studies with animals performed by any of the authors.
: For this type of study formal consent is not required.