Karstens, Sven http://orcid.org/0000-0001-7403-3452
Kuithan, Pauline
Joos, Stefanie
Hill, Jonathan C.
Wensing, Michel
Steinhäuser, Jost
Krug, Katja
Szecsenyi, Joachim
Article History
Received: 21 May 2017
Accepted: 14 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: All participants gave their written informed consent before participation. Ethical approval was granted by the Ethics Committee of the University of Heidelberg (registration ID: S-414/2013).
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.