Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (407440_167412/1)
Received: 27 August 2019
Revised: 16 January 2020
Accepted: 23 January 2020
First Online: 13 February 2020
Change Date: 8 April 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The SwiSCI was approved by the responsible ethics committees of the cantons of Lucerne, Zurich, Basel-Stadt and Valais.