Muehlberg, Fabian http://orcid.org/0000-0002-7981-5178
Arnhold, Kristin
Fritschi, Simone
Funk, Stephanie
Prothmann, Marcel
Kermer, Josephine
Zange, Leonora
von Knobelsdorff-Brenkenhoff, Florian
Schulz-Menger, Jeanette
Article History
Received: 10 July 2017
Accepted: 5 February 2018
First Online: 19 February 2018
Ethics approval and consent to participate
: The study was approved by Charité University Medicine ethics board at Charité Campus Mitte, Berlin, Germany.
: Individuals have given their written consent for anonymous publication.
: The authors declare that they have no competing interests.
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