Shimogonya, Yuji
Sawano, Yoichiro
Wakebe, Hiromichi
Inoue, Yuichi
Ishijima, Akihiko
Ishikawa, Takuji
Article History
Received: 11 August 2015
Accepted: 18 November 2015
First Online: 22 December 2015
Competing interests
: The authors declare no competing financial interests.