Funayama, Takashi
Tamura, Yoshifumi
Takeno, Kageumi
Kawaguchi, Minako
Kakehi, Saori
Watanabe, Takahiro
Furukawa, Yasuhiko
Kaga, Hideyoshi
Yamamoto, Risako
Kanazawa, Akio
Fujitani, Yoshio
Kawamori, Ryuzo
Watada, Hirotaka
Article History
Received: 23 August 2016
Accepted: 5 December 2016
First Online: 9 January 2017
Competing interests
: The authors declare no competing financial interests.