Funding for this research was provided by:
Berlin University Alliance
Received: 27 November 2020
Accepted: 8 February 2021
First Online: 1 March 2021
Compliance with ethical standards
: BR and SW have received funding by the Berlin University Alliance for the conduct of this study. The other authors declare that they have no conflicts of interest.
: This study was approved by the Ethics Committee of Charité—Universitätsmedizin Berlin (EA2/128/20, Date 07/27/2020).