Naruoka, Akane
Ohnami, Sumiko
Nagashima, Takeshi
Serizawa, Masakuni
Ohshima, Keiichi
Ohnami, Shumpei
Urakami, Kenichi
Horiuchi, Yasue
Kiyozumi, Yoshimi
Abe, Masato
Nakajima, Takashi
Sugiura, Teiichi
Uesaka, Katsuhiko
Kusuhara, Masatoshi
Yamaguchi, Ken
Article History
Received: 9 September 2016
Revised: 12 February 2017
Accepted: 23 February 2017
First Online: 27 April 2017
Competing interests
: The authors declare no conflict of interest.