Nakashima, Mitsuko
Miyajima, Masakazu
Sugano, Hidenori
Iimura, Yasushi
Kato, Mitsuhiro
Tsurusaki, Yoshinori
Miyake, Noriko
Saitsu, Hirotomo
Arai, Hajime
Matsumoto, Naomichi
Article History
Received: 3 July 2014
Revised: 13 September 2014
Accepted: 10 October 2014
First Online: 6 November 2014
Competing interests
: The authors declare no conflict of interest.