- Correspondence to Professor JM Pumar, Department of Neuroradiology, Hospital Clinico Universitario, Universidad de Santiago de Compostela, Travesía de la Choupana s/n, Santiago de Compostela, Dp 157066, Spain;
- Received February 28, 2017
- Revised April 20, 2017
- Accepted April 23, 2017
- First published May 10, 2017.
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