Otsuka, Motoyuki http://orcid.org/0000-0003-2869-2881
Kishikawa, Takahiro
Yoshikawa, Takeshi
Yamagami, Mari
Ohno, Motoko
Takata, Akemi
Shibata, Chikako
Ishibashi, Rei
Koike, Kazuhiko
Article History
Received: 23 February 2016
Revised: 13 April 2016
Accepted: 14 April 2016
First Online: 26 May 2016
Competing interests
: The authors declare no conflict of interest.
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