Haehl, Erik
Rühle, Alexander
David, Hélène
Kalckreuth, Tobias
Sprave, Tanja
Stoian, Raluca
Becker, Christoph
Knopf, Andreas
Grosu, Anca-Ligia
Nicolay, Nils H. https://orcid.org/0000-0003-2550-1410
Article History
Received: 13 December 2019
Accepted: 29 January 2020
First Online: 4 February 2020
Ethics approval and consent to participate
: The study was approved by the institutional ethical review committee (reference no. 551/18).
: Not applicable.
: The authors declare that they have no competing interests.