Krist, Lilian http://orcid.org/0000-0002-6089-5163
Keller, Theresa
Becher, Heiko
Jöckel, Karl-Heinz
Schlaud, Martin
Willich, Stefan N.
Keil, Thomas
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01ER1001A-I)
Article History
Received: 7 August 2018
Accepted: 17 January 2019
First Online: 28 January 2019
Ethics approval and consent to participate
: The study was approved by the ethical review committee of the Charité-Universitätsmedizin Berlin, Germany. All participants provided written informed consent before participating in the study.
: 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.