1. Department of Neuroscience, Imaging and Clinical Sciences, Institute for Advanced Biomedical Technologies, “G. d’Annunzio” University of Chieti and Pescara, Chieti, Italy
2. Department of Clinical Sciences, Lund University, Malmö, Sweden
3. Internal Medicine and Critical Subacute Care Unit, Medicine Geriatric-Rehabilitation Department, and Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
4. Department of Internistic Ultrasound, “G. d’Annunzio” University of Chieti and Pescara, Chieti, Italy