1. Division of Pediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padua, Padua, Italy
2. Unit of Biostatistics, Epidemiology and Public Health, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
3. Neonatal Intensive Care Unit, Department of Women’s and Children’s Health, Institute of Pediatric Research, University of Padua, Padua, Italy
4. ReSViNET Foundation, Zeist, the Netherlands