Yoshioka, Katsumasa
Katayama, Ikufumi
Minami, Yasuo http://orcid.org/0000-0002-3382-9160
Kitajima, Masahiro
Yoshida, Shoji
Shigekawa, Hidemi
Takeda, Jun
Article History
Received: 19 April 2016
Accepted: 22 September 2016
First Online: 7 November 2016
Competing interests
: The authors declare no competing financial interests.