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Authors
Krack, Gundula http://orcid.org/0000-0003-0495-7371
Holle, Rolf
Kirchberger, Inge
Kuch, Bernhard
Amann, Ute
Seidl, Hildegard
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Funding
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (FKZ 01 ET 0713)
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Article History
Received: 16 January 2018
Accepted: 25 May 2018
First Online: 7 June 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee at the Bavarian Chamber of Physicians (Date of approval: 11.11.2008, Reference number: 08064). Participants provided written informed consent before the start of the study.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
