Funding for this research was provided by:
Universität zu Lübeck
Received: 15 June 2021
Accepted: 23 June 2021
First Online: 6 September 2021
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/ or national research committee (Ethik-Kommission der Universität zu Lübeck; reference number: 18–262) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Written informed consent was obtained from all individual participants included in the study through the consent clause included in the questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.