Funding for this research was provided by:
Bundesministerium für Gesundheit (IIA5-2513FSB801)
Received: 7 August 2019
Accepted: 17 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: This study received ethical approval from the research committee of the University of Freiburg in February 2014 (ref: 53/14).Written informed consent was obtained from all individual participants included in this study.
: We have obtained consent to publish from the participant to report individual patient data.
: The authors declare that they have no conflicts of interest.