1. Nursing Department, Hospital Clínico San Carlos, 28040 Madrid, Spain
2. Geriatric Service, Hospital Clínico San Carlos, 28040 Madrid, Spain
3. Head of Legal Medicine Department, Hospital Clínico San Carlos, 28040 Madrid, Spain
4. Instituto de Investigación Sanitaria (IdISSC), 28040 Madrid, Spain
5. Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain