[1] Univ klinikum Bonn, Klin Palliativmed, Venusberg Campus 1, D-53127 Bonn, Germany
[2] Univ Bonn, Bonner Netzwerk Versorgungsforschung, Bonn, Germany
[3] Univ Med Gottingen, Klin Palliativmed, Gottingen, Germany
[4] European Assoc Palliat Care, Task Force Palliat Sedat, Brussels, Belgium
[5] Helios Klinikum Bonn Rhein Sieg, Bonn, Germany