- Correspondence to Dr Ricardo N Werner, Division of Evidence based Medicine (dEBM), Klinik für Dermatologie, Venerologie und Allergologie, Charité—Universitätsmedizin Berlin, Charitéplatz 1, Berlin 10117, Germany;
- Received 22 June 2016
- Revised 27 September 2016
- Accepted 10 October 2016
- Published in print 1 May 2017.
- Published online 20 April 2017.
- Published first 1 November 2016.
Abstract in German
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- Abstract in German - Online abstract
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