Di Maio, Sally http://orcid.org/0000-0001-5592-1374
Keller, Jan http://orcid.org/0000-0003-4660-6844
Job, Veronika http://orcid.org/0000-0002-4983-1644
Felsenberg, Dieter
Ertel, Wolfgang
Schwarzer, Ralf http://orcid.org/0000-0002-0069-3826
Knoll, Nina http://orcid.org/0000-0002-0871-5559
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01EC1408H, SPP7, 01EC1408L, SPP6)
Article History
First Online: 11 March 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This study was part of the PrevOP-PAP randomized controlled trial, approved by the ethics committee of the Charité – Universitätsmedizin Berlin (EA4/027/15) and was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.