Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (HE 3115/10-1, HE 3115/10-2, AL 559/2-1, AL 559/2-2)
Bundesministerium für Bildung und Forschung (BMBF Grant 01 KN11 06)
Text and Data Mining valid from 2019-02-04
Received: 5 December 2017
Accepted: 15 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: Research was approved by the Ethics Commission of the University Medical Faculty in Göttingen (Cologne 08–182, Göttingen 05/10/07). Written informed consent to participate in the study was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests. C. Herrmann-Lingen is receiving royalties for the German version of the HADS.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.