Nakayama, Tsuguhisa http://orcid.org/0000-0001-8761-9292
Asaka, Daiya
Kuboki, Akihito
Okushi, Tetsushi
Kojima, Hiromi
Article History
Received: 17 March 2018
Accepted: 14 May 2018
First Online: 18 May 2018
Compliance with ethical standards
:
: The authors declare no conflicts of interest relevant to this report.
: Informed consent was obtained from all individual participants included in the study.
: 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.