Kondo, Akihiro
Tsukada, Yuichiro
Kojima, Motohiro
Nishizawa, Yuji
Sasaki, Takeshi
Suzuki, Yasuyuki
Ito, Masaaki
Article History
Accepted: 29 August 2018
First Online: 13 September 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. For this type of study, formal consent is not required.
: The authors claim no conflict of interest regarding this manuscript.