Tomiyama, Hirofumi
,
Yoshida, Masanobu
Higashi, Yukihito
Takase, Bonpei
Furumoto, Tomoo
Kario, Kazuomi
Ohya, Yusuke
Yamashina, Akira
Article History
Received: 20 February 2014
Revised: 8 April 2014
Accepted: 25 April 2014
First Online: 19 June 2014
Competing interests
: The authors declare no conflict of interest.