Machida, Junichiro
Goto, Hiroaki
Tatematsu, Tadashi
Shibata, Akio
Miyachi, Hitoshi
Takahashi, Katsu
Izumi, Hiroto
Nakayama, Atsuo
Shimozato, Kazuo
Tokita, Yoshihito
Article History
Received: 14 June 2017
Revised: 16 August 2017
Accepted: 5 September 2017
First Online: 9 November 2017
Competing interests
: The authors declare no conflict of interest.