Nitta, Masato http://orcid.org/0000-0003-3063-6029
Article History
Received: 29 July 2018
Accepted: 10 January 2019
First Online: 11 February 2019
Compliance with ethical standards
:
: The author declares that he has no conflict of interest.
: All applicable institutional, national and international guidelines for the care and use of animals were followed.