Okamoto, Hideki
Eguchi, Ritsuko
Hamao, Shino
Goto, Hidenori
Gotoh, Kazuma
Sakai, Yusuke
Izumi, Masanari
Takaguchi, Yutaka
Gohda, Shin
Kubozono, Yoshihiro
Article History
Received: 7 February 2014
Accepted: 2 June 2014
First Online: 17 June 2014
Competing interests
: The authors declare no competing financial interests.