Nakagomi, Atsushi
Okada, Sho
Yokoyama, Masataka
Yoshida, Yohko
Shimizu, Ippei
Miki, Takashi
Kobayashi, Yoshio
Minamino, Tohru
Article History
Received: 10 December 2014
Revised: 11 June 2015
Accepted: 31 July 2015
First Online: 29 October 2015
Competing interests
: The authors declare no conflict of interest.