- Correspondence to Dr D A Rubin, Department of Radiology, Mallinckrodt Institute of Radiology, Washington University, 510 South Kingshighway, St Louis, MI 63110, USA;
- Received December 5, 2012
- Revised December 5, 2012
- Accepted December 5, 2012
- First published December 25, 2012.
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