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Authors
Tsuji, Takayuki
Ohishi, Kazuhisa
Takeda, Asumi
Goto, Daiki
Sato, Taichi
Ohashi, Naro
Fujigaki, Yoshihide
Kato, Akihiko
Yasuda, Hideo
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Article History
Received: 3 September 2017
Accepted: 12 April 2018
First Online: 26 April 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. 25-125) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Since this was an observational but not prospective intervention study, the Ethics Committee provided a waiver of informed consent.
