Funding for this research was provided by:
Federal Joint Committee of the Federal Republic of Germany (01NVF16009)
Received: 26 April 2020
Accepted: 17 December 2020
First Online: 1 February 2021
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Medical School of Hannover. Consent was obtained from all participants, online, before the questionnaire itself could be attempted. The manuscript does not contain individual person’s data<b>.</b>
: The consent to participate included consent for publication of results.
: The authors declare that they have no competing interests..