Funding for this research was provided by:
the Research Funding Program of the University Medical Center Göttingen (2017)
Received: 17 November 2019
Accepted: 18 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: This study was approved by the Research Ethics Board of Göttingen, Germany (reference number: 17/12/16). Written consent was obtained from all participants before the start of the study.
: We have obtained consent from all participants to include their views in academic publications.
: The authors declare no competing interests.