Tomita, Takuya
Hamazaki, Jun
Hirayama, Shoshiro
McBurney, Michael W.
Yashiroda, Hideki
Murata, Shigeo
Article History
Received: 20 March 2015
Accepted: 1 July 2015
First Online: 29 July 2015
Competing interests
: The authors declare no competing financial interests.