Pahl, Antonia http://orcid.org/0000-0002-1531-1106
Wehrle, Anja
Kneis, Sarah
Gollhofer, Albert
Bertz, Hartmut
Article History
Received: 29 January 2018
Accepted: 12 September 2018
First Online: 25 September 2018
Ethics approval and consent to participate
: Ethics approval was given by the Ethics Committee of the University of Freiburg (267/12). Every patient had to sign written informed consent prior to inclusion.
: Not applicable.
: The authors have no competing interests to declare.
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