Kii, Isao
Sumida, Yuto
Goto, Toshiyasu
Sonamoto, Rie
Okuno, Yukiko
Yoshida, Suguru
Kato-Sumida, Tomoe
Koike, Yuka
Abe, Minako
Nonaka, Yosuke
Ikura, Teikichi
Ito, Nobutoshi
Shibuya, Hiroshi
Hosoya, Takamitsu
Hagiwara, Masatoshi
Article History
Received: 7 December 2015
Accepted: 22 March 2016
First Online: 22 April 2016
Competing interests
: The authors declare no competing financial interests.