Kawakami, Kazuki
Takeshita, Ai
Furushima, Kenryo
Miyajima, Masayasu
Hatamura, Ikuji
Kuro-o, Makoto
Furuta, Yasuhide
Sakaguchi, Kazushige
Article History
Received: 28 July 2016
Accepted: 7 December 2016
First Online: 17 January 2017
Competing interests
: The authors declare no competing financial interests.