- Correspondence to Dr Ingo Gräff, Emergency Department, University Hospital Bonn, Sigmund-Freud-Str. 25, Bonn 53127, Germany;
- Received 13 August 2015
- Revised 23 November 2016
- Accepted 27 November 2016
- Published in print 1 April 2017.
- Published online 23 March 2017.
- Published first 19 December 2016.
Abstract in German
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- Abstract in German - Online abstract
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