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History
- Received October 27, 2008
- Accepted after revision December 30, 2008
- Published online June 11, 2009.
Article Versions
- Latest version (April 15, 2009 - 11:08).
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Copyright & Usage
Copyright © American Society of Neuroradiology
Author Information
- Please address correspondence to David F Kallmes, MD, Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905; e-mail: Kallmes.david{at}mayo.edu