1. Department of Surgical Sciences, Dentistry, Ginecology and Pediatrics, University of Verona, Verona, Italy
2. Department of Medicine, Division of Geriatrics, Healthy Aging Center, University of Verona, Verona, Italy
3. Pennington Biomedical Research Center, Baton Rouge, LA, USA
4. Pediatric Infectious Disease Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy