Matsumoto, Juntaro http://orcid.org/0000-0002-3097-8603
Isu, Toyohiko
Kim, Kyongsong
Miki, Koichi
Fujihara, Fumiaki
Isobe, Masanori
Article History
Received: 21 January 2019
Accepted: 22 February 2019
First Online: 4 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study 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.
: Informed consent was obtained from all individual participants included in the study.