Akamatsu, Norihisa
Tashiro, Wataru
Saito, Keisuke
Mamiya, Jun-ichi
Kinoshita, Motoi
Ikeda, Tomiki
Takeya, Jun
Fujikawa, Shigenori
Priimagi, Arri
Shishido, Atsushi
Article History
Received: 8 January 2014
Accepted: 2 June 2014
First Online: 20 June 2014
Competing interests
: The authors declare no competing financial interests.