Funding for this research was provided by:
Received: 7 April 2021
Accepted: 16 September 2021
First Online: 6 October 2021
: We confirm that all methods were carried out in accordance with relevant guidelines and regulations, e.g. Declaration of Helsinki. According to a communication from the Ethics Committee of the Medical University of Tübingen, no formal ethical vote is required for the collection of anonymous data according to the German federal law of § 3 Abs. 6 BDSG / LDSG BW. Therefore, submission of a study protocol to the Ethics Committee of the Medical University of Tübingen was not required. Informed consent from all study participants was obtained by actively clicking the checkbox in the online survey; otherwise, participation in the survey was not possible.
: Not applicable.
: The authors declare that they have no competing interests.