Yamamoto, Hirotaka
Fujita, Atsushi http://orcid.org/0000-0003-1294-6584
Imahori, Taichiro
Sasayama, Takashi
Hosoda, Kohkichi
Nibu, Ken-ichi
Kohmura, Eiji
Article History
Received: 18 August 2017
Accepted: 28 December 2017
First Online: 17 January 2018
Competing Interests
: The authors declare that they have no competing interests.