Fukui, Tomoya
Kawai, Shinnosuke
Fujinuma, Satoko
Matsushita, Yoshitaka
Yasuda, Takeshi
Sakurai, Tsuneaki
Seki, Shu http://orcid.org/0000-0001-7851-4405
Takeuchi, Masayuki
Sugiyasu, Kazunori
Article History
Received: 21 July 2016
Accepted: 24 October 2016
First Online: 19 December 2016
Competing interests
: The authors declare no competing financial interests.