Funding for this research was provided by:
Ruprecht-Karls-Universität Heidelberg
Article History
Received: 28 February 2022
Accepted: 13 April 2022
First Online: 29 April 2022
Declarations
:
: The study was approved by the University of Tuebingen Ethics committee (reference number 54/2011BO2).
: All participants gave written consent and could withdraw from the study at any time.
: The authors declare no competing interests.