Takeuchi, Mai
Ohno, Kyotaro
Takata, Katsuyoshi
Gion, Yuka
Tachibana, Tomoyasu
Orita, Yorihisa
Yoshino, Tadashi
Sato, Yasuharu
Article History
Received: 12 August 2014
Accepted: 3 December 2014
First Online: 9 January 2015
Competing interests
: The authors declare no competing financial interests.