Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01GL1705A-D)
Klaus Tschira Stiftung
University of Gothenburg
Received: 3 July 2020
Accepted: 29 December 2020
First Online: 1 February 2021
Ethics approval and consent to participate
: Ethical approval for the LiFE-is-LiFE trial was obtained from the Ethic Review Board of the Faculty of Behavioral and Cultural Studies at Heidelberg University (study site Heidelberg, document number Schwe2017 2/1–1), and from the Ethic Review Board of the University Hospital and Faculty of Medicine in Tübingen (study site Stuttgart, document number 723/2017BO2) which are both followed the policy and mandates of the Declaration of Helsinki. For the LiFE-is-LiFE trial, as well as for the focus group study, all participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.