Yamamoto, Suguru
Kazama, Junichiro J.
Omori, Kentaro
Matsuo, Koji
Takahashi, Yoshimitsu
Kawamura, Kazuko
Matsuto, Takayuki
Watanabe, Hiroshi
Maruyama, Toru
Narita, Ichiei
Article History
Received: 27 May 2015
Accepted: 25 August 2015
First Online: 23 September 2015
Competing interests
: The authors declare no competing financial interests.