Inamasu, Joji
Kato, Masahiro
Funding for this research was provided by:
None (N/A)
Article History
Received: 3 September 2018
Accepted: 8 October 2018
First Online: 12 October 2018
Compliance with ethical standards
:
: No funding was received for this study.
: The authors declare that they have no conflict of interest.
: All procedures performed in the 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.
: For this type of retrospective study formal consent is not required.