Kimura, Tokuhiro
Cui, Dan
Kawano, Hiroo
Yoshitomi-Sakamoto, Chihiro
Takakura, Nobuyuki
Ikeda, Eiji http://orcid.org/0000-0002-6833-6075
Article History
Received: 7 July 2018
Accepted: 13 November 2018
First Online: 21 November 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.
: Informed consent was obtained from all individual participants included in the study.