- Correspondence to Daniel Behme, Department of Radiology and Neuroradiology, Klinikum Vest—Knappschaftskrankenhaus Recklinghausen, Dorstener Str. 151, Recklinghausen 45657, Germany;
- Received March 13, 2014
- Revised May 26, 2014
- Accepted June 2, 2014
- First published June 24, 2014.
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