Ando, Takashi
Nishiyama, Tsutomu
Takizawa, Itsuhiro
Ishizaki, Fumio
Miyashiro, Yoshimichi
Takeda, Keisuke
Hara, Noboru
Tomita, Yoshihiko
Article History
Received: 10 March 2016
Accepted: 1 August 2016
First Online: 26 August 2016
Competing interests
: The authors declare no competing financial interests.