Muto, H
Sakata-Yanagimoto, M
Nagae, G
Shiozawa, Y
Miyake, Y
Yoshida, K
Enami, T
Kamada, Y
Kato, T
Uchida, K
Nanmoku, T
Obara, N
Suzukawa, K
Sanada, M
Nakamura, N
Aburatani, H
Ogawa, S
Chiba, S
Article History
Received: 30 September 2014
Accepted: 2 October 2014
First Online: 12 December 2014
Competing interests
: The authors declare no conflict of interest.