Periumbilical Pain
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Robert G. Stern, MD, Section Editor
Funding: None.
Conflict of Interest: No.
Authorhip: Su YJ wrote the manuscript, and Lai YC collected data.
PII: S0002-9343(09)01154-1
doi:10.1016/j.amjmed.2009.12.015
© 2010 Elsevier Inc. All rights reserved.

