1. Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
2. Home Care Städteregion Aachen, Aachen, Germany
3. Department of Medical Statistics, Medical Faculty, RWTH Aachen University, Aachen, Germany
4. Department of Palliative Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany