Yamamoto, Mari
Terauchi, Yoshihiro
Sakuda, Atsushi http://orcid.org/0000-0002-9214-0347
Takahashi, Masanari
Article History
Received: 7 August 2017
Accepted: 29 December 2017
First Online: 19 January 2018
Competing Interests
: The authors declare that they have no competing interests.