Funding for this research was provided by:
German National Association of the Statutory Health Insurance and Long-Term Care Insurance Funds (n.a.)
Bayerisches Staatsministerium für Gesundheit und Pflege (n.a.)
Received: 26 March 2019
Accepted: 10 July 2019
First Online: 25 July 2019
Ethics approval and consent to participate
: All procedures were approved by the Ethics Committee of the Medical Faculty of the Friedrich-Alexander-University Erlangen-Nuremberg (Ref. 170_14 B) with a positive vote. The participation of caregivers and cognitively impaired persons was voluntary, and participants were free to leave the study at any time. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.