Yamaguchi, Kiyoshi
Komura, Mitsuhiro
Yamaguchi, Rui
Imoto, Seiya
Shimizu, Eigo
Kasuya, Shinichi
Shibuya, Tetsuo
Hatakeyama, Seira
Takahashi, Norihiko
Ikenoue, Tsuneo
Hata, Keisuke
Tsurita, Giichiro
Shinozaki, Masaru
Suzuki, Yutaka
Sugano, Sumio
Miyano, Satoru
Furukawa, Yoichi
Article History
Received: 6 October 2014
Revised: 15 December 2014
Accepted: 14 January 2015
First Online: 26 February 2015
Competing interests
: The authors declare no conflict of interest.