Matsubara, Yoshiyuki
Hirasawa, Tatsuya
Egawa, Shiro
Hattori, Ayumi
Suganuma, Takaya
Kohara, Yuhei
Nagai, Tatsuya
Tamura, Koji
Kuratani, Shigeru
Kuroiwa, Atsushi
Suzuki, Takayuki
Article History
Received: 28 December 2016
Accepted: 22 June 2017
First Online: 31 July 2017
Competing interests
: The authors declare no competing financial interests.