Richter, Kneginja
Peter, Lukas http://orcid.org/0000-0002-6431-3706
Lehfeld, Hartmut
Zäske, Harald
Brar-Reissinger, Salina
Niklewski, Günter
Funding for this research was provided by:
Bayerisches Staatsministerium für Arbeit und Soziales, Familie und Integration
Article History
Received: 18 October 2017
Accepted: 12 June 2018
First Online: 20 June 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of the Bavarian State Medical Association. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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