Zempo, Hirofumi
Suzuki, Jun-ichi
Watanabe, Ryo
Wakayama, Kouji
Kumagai, Hidetoshi
Ikeda, Yuichi
Akazawa, Hiroshi
Komuro, Issei
Isobe, Mitsuaki
Article History
Received: 19 December 2014
Revised: 22 August 2015
Accepted: 8 September 2015
First Online: 10 December 2015
Competing interests
: The authors declare no conflict of interest.
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