Yasumoto, Yuta
Yamanaka, Takahiro
Sakurai, Shinichi
Imoto, Hiroaki
Naka, Kensuke
Article History
Received: 7 August 2015
Revised: 6 October 2015
Accepted: 11 October 2015
First Online: 9 December 2015
Competing interests
: The authors declare no conflict of interest.
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