Funding for this research was provided by:
Universität der Bundeswehr München
Received: 25 November 2020
Accepted: 7 January 2021
First Online: 8 February 2021
Compliance with ethical guidelines
: C. Saalwirth and B. Leipold declare that they have no competing interests.
: This study was approved by the Ethics Committee of the Universität der Bundeswehr München and all participants gave informed consent prior to the online questionnaire in digital form.