Inokuchi, Shota http://orcid.org/0000-0002-8051-3206
Nakanishi, Hiroaki
Nishimura, Kazuma
Saito, Kazuyuki
Article History
Received: 9 December 2017
Accepted: 5 April 2018
First Online: 15 April 2018
Compliance with ethical standards
: All procedures performed in the study involving human participants were in accordance with the ethical standards of Juntendo University and with the 1964 Helsinki declaration and its later amendments. Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.