Data collection: In each of the study participants Units both interventions will be held. First the participants Units have been randomized in two groups (Group A: Neurology, Rehabilitation 1, Geriatrics, Internal Medicine; Group B: Cardiology, Rehabilitation 2, Gastroenterology, Neurosurgery and Oncology). All patients hospitalized in these Units will be potentially included. First of all, collaborators will give them an informed consent to ask for their participation.