Sugimachi, K
Matsumura, T
Hirata, H
Uchi, R
Ueda, M
Ueo, H
Shinden, Y
Iguchi, T
Eguchi, H
Shirabe, K
Ochiya, T
Maehara, Y
Mimori, K
Article History
Received: 24 July 2014
Revised: 19 November 2014
Accepted: 26 November 2014
First Online: 13 January 2015
Competing interests
: The authors declare no conflict of interest.