- Correspondence to: Dr S H Annabel Chen, Stanford School of Medicine, Radiology, Lucas MRS Imaging Center, 1201 Welch Road, MC: 5488, Stanford, CA 94305, USA;
- Received November 10, 2001
- Accepted September 12, 2002
- Revised August 13, 2002
- First published March 1, 2003.
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