Ishimatsu, Tetsuro http://orcid.org/0000-0001-8297-7648
Takeuchi, Ryohei
Ishikawa, Hiroyuki
Yamaguchi, Yuichiro
Maeyama, Akira
Osawa, Katsunari
Jung, Woon-Hwa
Article History
Received: 7 September 2018
Accepted: 11 January 2019
First Online: 21 January 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: 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.