Amemiya, Takayuki
Gromiha, M. Michael
Horimoto, Katsuhisa http://orcid.org/0000-0002-8328-6694
Fukui, Kazuhiko http://orcid.org/0000-0002-2482-8481
Article History
Received: 17 April 2018
Accepted: 22 November 2018
First Online: 24 January 2019
Competing Interests
: The authors declare no competing interests.