1. Medical Department of Continuity of Care and Disability, Physical Medicine and Rehabilitation, University Hospital St. Orsola-Malpighi, Bologna, Italy
2. Respiratory and Critical Care Unit, University Hospital St. Orsola-Malpighi, Bologna, Italy
3. Department of Specialistic, Diagnostic and Experimental Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy