Takeshita, Toru
Kageyama, Shinya
Furuta, Michiko
Tsuboi, Hidenori
Takeuchi, Kenji
Shibata, Yukie
Shimazaki, Yoshihiro
Akifusa, Sumio
Ninomiya, Toshiharu
Kiyohara, Yutaka
Yamashita, Yoshihisa
Article History
Received: 23 November 2015
Accepted: 9 February 2016
First Online: 24 February 2016
Competing interests
: The authors declare no competing financial interests.