Yamashita, Hiroko
Kato, Takuma
Oba, Makoto
Misawa, Takashi
Hattori, Takayuki
Ohoka, Nobumichi
Tanaka, Masakazu
Naito, Mikihiko
Kurihara, Masaaki
Demizu, Yosuke
Article History
Received: 16 May 2016
Accepted: 18 August 2016
First Online: 9 September 2016
Competing interests
: The authors declare no competing financial interests.