Higashi, Youichirou
Aratake, Takaaki
Shimizu, Shogo
Shimizu, Takahiro
Nakamura, Kumiko
Tsuda, Masayuki
Yawata, Toshio
Ueba, Tetuya
Saito, Motoaki
Article History
Received: 14 October 2016
Accepted: 30 January 2017
First Online: 27 February 2017
Competing interests
: The authors declare no competing financial interests.