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Authors
Yamamoto, H
Ishimura, M
Ochiai, M
Takada, H
Kusuhara, K
Nakatsu, Y
Tsuzuki, T
Mitani, K
Hara, T
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Article History
Received: 2 March 2015
Revised: 23 July 2015
Accepted: 5 August 2015
First Online: 17 August 2015
Competing interests
: The authors declare no conflict of interest.
