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Authors
Watanabe, Ryo
Suzuki, Jun-ichi
Wakayama, Kouji
Kumagai, Hidetoshi
Ikeda, Yuichi
Akazawa, Hiroshi
Komuro, Issei
Isobe, Mitsuaki
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Article History
Received: 18 April 2015
Revised: 30 October 2015
Accepted: 16 November 2015
First Online: 10 December 2015
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.
