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History
- Received August 24, 2012
- Revision received March 25, 2013
- Accepted May 6, 2013
- First published June 12, 2013.
- Version of record published June 12, 2013.
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Copyright © 2013 the authors 0270-6474/13/339963-12$15.00/0
Author Information
Author contributions
Author contributions: X.C., Y.G., and J.H. designed research; X.C., Y.G., Z.L., J.F., Xinjian Li, and H.W. performed research; X.C., Y.G., Xiao Li, and J.H. analyzed data; X.C. and J.H. wrote the paper.
Disclosures
- Received August 24, 2012.
- Revision received March 25, 2013.
- Accepted May 6, 2013.
This work was supported by Hong Kong Research Grants Council (PolyU9/CRF/09) and Ministry of Science and Technology of China (2012CB966300). We thank Ray Guillery, Mu-ming Poo, and Bin Hu for their critical comments on this manuscript, Raymond Chung for advice on statistical analyses, and Eduardo Lau for administrative and technical assistance.
- Correspondence should be addressed to Jufang He, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. rsjufang{at}polyu.edu.hk
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