Yamaguchi, Yuichi
Shimodo, Takahito
Chikamori, Noriyasu
Usuki, Sho
Kanai, Yoshihiro
Endo, Takeshi
Katsumata, Ken-ichi
Terashima, Chiaki
Ikekita, Masahiko
Fujishima, Akira
Suzuki, Tomonori
Sakai, Hideki
Nakata, Kazuya
Article History
Received: 7 April 2016
Accepted: 1 September 2016
First Online: 26 September 2016
Competing interests
: The authors declare no competing financial interests.