Received: 3 November 2020
Accepted: 16 March 2021
First Online: 31 March 2021
: This study was approved by the ethical review committee at the University of Heidelberg (2013620NMA). Written informed consent to participate in the study was obtained from participants.
: Not applicable, no individual data.
: G. Mueller and M. Bombana are employees of the sponsor. The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.