Horikawa, Shinjiro
Ishii, Yoko
Hamashima, Takeru
Yamamoto, Seiji
Mori, Hisashi
Fujimori, Toshihiko
Shen, Jie
Inoue, Ran
Nishizono, Hirofumi
Itoh, Hiroshi
Majima, Masataka
Abraham, David
Miyawaki, Toshio
Sasahara, Masakiyo
Article History
Received: 24 July 2015
Accepted: 9 November 2015
First Online: 7 December 2015
Competing interests
: The authors declare no competing financial interests.