1 Department of Palliative Medicine, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany. Maria.Heckel@uk-erlangen.de.
2 Interdisciplinary Palliative Care Unit, III. Department of Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
3 Institute for General Practice, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hanover, Germany.
4 Department of Palliative Medicine, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraße 12, 91054, Erlangen, Germany.