Ohno, Yasumasa
Terauchi, Mikio
Tamakoshi, Koji
Shiozaki, Arihiro
Saito, Shigeru
Article History
Received: 5 February 2015
Revised: 28 May 2015
Accepted: 26 August 2015
First Online: 22 October 2015
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.