Matsumura, T
Sugimachi, K
Iinuma, H
Takahashi, Y
Kurashige, J
Sawada, G
Ueda, M
Uchi, R
Ueo, H
Takano, Y
Shinden, Y
Eguchi, H
Yamamoto, H
Doki, Y
Mori, M
Ochiya, T
Mimori, K
Article History
Received: 22 February 2015
Revised: 6 April 2015
Accepted: 6 May 2015
First Online: 9 June 2015
Competing interests
: The authors declare no conflict of interest.