Arai-Sanoh, Yumiko
Takai, Toshiyuki
Yoshinaga, Satoshi
Nakano, Hiroshi
Kojima, Mikiko
Sakakibara, Hitoshi
Kondo, Motohiko
Uga, Yusaku
Article History
Received: 30 April 2014
Accepted: 17 June 2014
First Online: 3 July 2014
Competing interests
: The authors declare no competing financial interests.