Yamashita, Akihiro
Morioka, Miho
Kishi, Hiromi
Kimura, Takeshi
Yahara, Yasuhito
Okada, Minoru
Fujita, Kaori
Sawai, Hideaki
Ikegawa, Shiro
Tsumaki, Noriyuki
Article History
Received: 1 February 2014
Accepted: 19 August 2014
First Online: 17 September 2014
Competing interests
: The authors declare no competing financial interests.