Sonamoto, Rie
Kii, Isao
Koike, Yuka
Sumida, Yuto
Kato-Sumida, Tomoe
Okuno, Yukiko
Hosoya, Takamitsu
Hagiwara, Masatoshi
Article History
Received: 18 December 2014
Accepted: 7 July 2015
First Online: 3 August 2015
Competing interests
: The authors declare no competing financial interests.