Pietsch, Urs
Lischke, Volker
Sollid, Stephen J. M.
Prückner, Stephan
Theiler, Lorenz
Greif, Robert
Albrecht, Roland
Article History
Received: 31 March 2020
Accepted: 16 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: The regional committees for medical and health research ethics of St. Gallen, Switzerland (EKOS), classified this study as a project not requiring ethical approval.
: Not applicable.
: The authors declare that they have no competing interests.