Funding for this research was provided by:
Robert Bosch Foundation (12.5.A000.0014.0)
Land Niedersachsen (Nds.MBI. Nr.22/2014)
Europäischer Sozialfonds (ZAM 5-85016031)
Received: 6 March 2019
Accepted: 12 August 2019
First Online: 20 August 2019
Ethics approval and consent to participate
: Ethical approval was given by the ethics committee of the University Medical Centre Göttingen (Ethics Approval No. 18/5/16). All participants provided voluntary informed consent and consent to publish anonymized, grouped data.
: Not Applicable.
: The authors declare that they have no competing interests.