- Correspondence to Dr J M Pumar, Interventional Neuroradiology Department, Hospital Clinico Universitario de la Universidad de Santiago de Compostela, Travesia de la Choupana S/N, Santiago de Compostela 15706, Spain;
- Received January 9, 2013
- Accepted March 7, 2013
- First published April 12, 2013.
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