Ihara, Toshihiro
Ohura, Hiroyuki
Shirahama, Chisato
Furuzono, Tomohiro
Shimada, Hiroshi
Matsuura, Hirotaka
Kitamura, Yusuke
Article History
Received: 26 August 2014
Accepted: 3 February 2015
First Online: 7 April 2015
Competing interests
: The authors declare no competing financial interests.