Maruhashi, Tatsuya
Noma, Kensuke
Fujimura, Noritaka
Kajikawa, Masato
Matsumoto, Takeshi
Hidaka, Takayuki
Nakashima, Ayumu
Kihara, Yasuki
Liao, James K
Higashi, Yukihito
Article History
Received: 11 November 2014
Revised: 6 January 2015
Accepted: 25 January 2015
First Online: 5 March 2015
Competing interests
: The authors declare no conflict of interest.