Neuhaus, Christopher http://orcid.org/0000-0001-7262-3723
Schäfer, Johannes
Weigand, Markus A.
Lichtenstern, Christoph
Article History
Received: 18 August 2019
Accepted: 11 December 2019
First Online: 18 December 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Medical Faculty, University of Heidelberg (S-521/2015). Written informed consent was obtained from all participants. This manuscript adheres to the applicable EQUATOR guidelines.
: Not applicable.
: The authors declare that they have no competing interests.