- Correspondence to Dr Dimitrios K Filippiadis, Second Department of Radiology, University General Hospital "ATTIKON"Medical School, National and Kapodistrian University of Athens, Haidari, Athens 12462, Greece;
- Received 2 July 2017
- Revised 21 August 2017
- Accepted 24 August 2017
- Published in print 11 September 2017.
- Published online 12 September 2017.
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