1. Department of Medicine and Science of Ageing, Section of “Allergy, Clinical Immunology and Occupational Medicine” - University of Chieti - Italy
2. Department of Medicine and Science of Ageing, Section of “Geriatrics”, and Department of Oncology and Neurosciences - University of Chieti - Italy
3. Department of Medicine and Science of Ageing, Immunology Division, - University of Chieti - Italy
4. Department of Pharmacology and Experimental Medicine, Tufts University of Medicine, Boston, MA, USA