Stalling, Imke http://orcid.org/0000-0002-5586-6229
Albrecht, Birte Marie
Doerwald, Friederike
Bammann, Karin
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01EL1422B)
Article History
Received: 1 July 2020
Accepted: 15 October 2020
First Online: 20 October 2020
Ethics approval and consent to participate
: The OUTDOOR ACTIVE study was approved by the ethics committee of the University of Bremen. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.