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History
- Accepted August 11, 2014
- Published online December 1, 2014.
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- previous version (November 10, 2014 - 00:06).
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Copyright © 2014 by the American Academy of Pediatrics
Author Information
- Wei Xu, MD and
- Shu-Cheng Zhang, MD
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China