- Correspondence to Dr Florian Wagner, Institut für Gewebediagnostik/MVZ, HELIOS Klinikum Emil von Behring, Walterhöferstrasse 11, 14165 Berlin, Germany;
- Received April 30, 2014
- Revised June 19, 2014
- Accepted June 20, 2014
- First published July 15, 2014.
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