Hijikata, Atsushi http://orcid.org/0000-0003-4297-8368
Tsuji, Toshiyuki
Shionyu, Masafumi
Shirai, Tsuyoshi
Article History
Received: 4 May 2017
Accepted: 14 July 2017
First Online: 17 August 2017
Competing Interests
: The authors declare that they have no competing interests.