Sugi, Haruo
Chaen, Shigeru
Akimoto, Tsuyoshi
Minoda, Hiroki
Miyakawa, Takuya
Miyauchi, Yumiko
Tanokura, Masaru
Sugiura, Seiryo
Article History
Received: 27 May 2015
Accepted: 21 September 2015
First Online: 26 October 2015
Competing interests
: The authors declare no competing financial interests.