Arai, Ryuta
Takahashi, Tsutomu
Kodaira, Shuichi
Kaiho, Yuka
Nakanishi, Ayako
Fujie, Gou
Nakamura, Yasuyuki
Yamamoto, Yojiro
Ishihara, Yasushi
Miura, Seiichi
Kaneda, Yoshiyuki
Article History
Received: 8 December 2015
Accepted: 13 June 2016
First Online: 22 July 2016
Competing interests
: The authors declare no competing financial interests.