Ishii, Yoshinori
Noguchi, Hideo
Sato, Junko
Ishii, Hana
Toyabe, Shin-ichi
Article History
Received: 16 November 2018
First Online: 11 March 2019
Compliance with ethical standards
:
: All authors declare that they have no conflicts 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.
: Informed consent was obtained from all individual participants included in the study.