1. Department of Psychology—Theory and Methodology of Counseling, University of Kassel, 34127 Kassel, Hesse, Germany
2. Palliative Care Team for Children Frankfurt, 60599 Frankfurt, Hesse, Germany
3. Palliative Care Team for Children Giessen, 35392 Giessen, Hesse, Germany
4. Palliative Care Team for Children Kassel, 34125 Kassel, Hesse, Germany