Kosaka, Takeo http://orcid.org/0000-0002-4371-4594
Hongo, Hiroshi
Watanabe, Keitaro
Mizuno, Ryuichi
Kikuchi, Eiji
Oya, Mototsugu
Article History
Received: 1 April 2018
Accepted: 10 September 2018
First Online: 3 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest for this study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.