Yonezawa, Kento
Shimizu, Nobutaka
Kurihara, Kazuo
Yamazaki, Yoichi
Kamikubo, Hironari
Kataoka, Mikio
Article History
Received: 26 April 2017
Accepted: 28 July 2017
First Online: 24 August 2017
Competing Interests
: The authors declare that they have no competing interests.