Kashiwagi, Kazuhiro
Takahashi, Mari
Nishimoto, Madoka
Hiyama, Takuya B.
Higo, Toshiaki
Umehara, Takashi
Sakamoto, Kensaku
Ito, Takuhiro
Yokoyama, Shigeyuki
Article History
Received: 9 October 2015
Accepted: 12 January 2016
First Online: 22 February 2016
Competing interests
: The authors declare no competing financial interests.