1. Center for Geriatric MedicineHeidelberg University Heidelberg Germany
2. Department of Geriatric ResearchAGAPLESION Bethanien Hospital Heidelberg, Geriatric Center at the Heidelberg University Heidelberg Germany
3. Bosch Engineering Abstatt Germany
4. ESTECO SpA Trieste Italy
5. Department of Engineering and ArchitectureUniversity of Trieste Trieste Italy
6. Faculty of Science and TechnologyFree University of Bozen‐Bolzano Bolzano Italy