Ohfuji, Susumu http://orcid.org/0000-0002-6096-6881
Article History
Received: 19 November 2019
Accepted: 10 March 2020
First Online: 20 March 2020
Compliance with ethical standards
:
: The author declares that he has no competing interests.
: None.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.