Nanmoku, Koji http://orcid.org/0000-0003-3987-4832
Shinzato, Takahiro
Kubo, Taro
Shimizu, Toshihiro
Yagisawa, Takashi
Article History
Received: 8 May 2018
Accepted: 5 August 2018
First Online: 18 August 2018
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee at which the studies were conducted (IRB Approval No. A16-111) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Because this was an observational but not prospective intervention study, the Ethics Committee provided a waiver of informed consent.