Ogi, H
Sakuraba, Y
Kitagawa, R
Xiao, L
Shen, C
Cynthia, M A
Ohta, S
Arnold, M A
Ramirez, N
Houghton, P J
Kitagawa, K
Article History
Received: 9 January 2015
Revised: 24 March 2015
Accepted: 30 March 2015
First Online: 18 May 2015
Competing interests
: The authors declare no conflict of interest.