Funding for this research was provided by:
Karlsruher Institut für Technologie (KIT)
Received: 28 January 2021
Accepted: 14 June 2021
First Online: 23 July 2021
: The MoMo study was conducted in accordance with the Declaration of Helsinki. Ethics approval was obtained by the Charité Universitätsmedizin Berlin ethics committee, by the University of Konstanz, and the ethics committee of the Karlsruhe Institute of Technology. The Federal Commissioner for Data Protection and Freedom of Information was informed about the study and approved it. Before taking part in the study, participants or their custodians were informed about the contents of the study and about data protection and gave their written consent. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.