Funding for this research was provided by:
Wilhelm Sander-Stiftung (2009.800.1 and 2009.800.2)
Received: 7 January 2020
Accepted: 6 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: Participation was voluntary, and patients and family caregivers could decline to participate. Written informed consent was raised from all patients and family caregivers. The local ethics committee of the University of Regensburg issued a positive vote on the conduct of this study (number 14–101-0291). All procedures were performed according to the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Does not apply.
: The authors declare that they have no competing interests.