Liu, F-y
Zhou, S-j
Deng, Y-l
Zhang, Z-y
Zhang, E-l
Wu, Z-b
Huang, Z-y
Chen, X-p
Article History
Received: 22 September 2014
Revised: 1 January 2015
Accepted: 21 January 2015
First Online: 5 March 2015
Competing interests
: We declare all animals received humane care according to the criteria outlined in the "Guide for the Care and Use of Laboratory Animals".We assume that the corresponding author speaks for all coauthors and certifies that all listed authors participated meaningfully in the study and that they have seen and approved the final manuscript.