Funding for this research was provided by:
German Innovations Fund of the Federal Joint Committee in Germany (01VSF16005)
Received: 4 November 2019
Accepted: 24 June 2020
First Online: 3 August 2020
Ethics approval and consent to participate
: Written approval from the local ethics committee was obtained from Jena University Hospital (No. 5316–10/17). Informed consent was implied if the completed questionnaire was sent back.
: Not applicable.
: The authors declare that they have no competing interests.