1. Wiesbaden Institute for Healthcare Economics and Patient Safety, Wiesbaden Business School, Rhein-Main University of Applied Sciences, Wiesbaden, Germany
2. Hegau Jugendwerk Gailingen, Health Care Association District of Constance, Gailingen, Germany, Health Care Association District of Constance
3. Elisabeth-Kuebler-Ross Academy Stuttgart, Hospice Stuttgart, Stuttgart, Germany.