- Correspondence to Professor Edson Marchiori, Department of Radiology, Federal University of Rio de Janeiro, Rua Thomaz Cameron, 438, Valparaiso, Petrópolis, Rio de Janeiro CEP 25685.120, Brazil;
- Received October 20, 2013
- Revised November 15, 2013
- Accepted November 29, 2013
- First published December 24, 2013.
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