1. From the Department for Women’s and Children’s Health, University of Padua, Padua, Italy
2. Penta – Child Health Research, Padua, Italy
3. Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
4. Division of Infectious Diseases, Department of Pediatrics, CHU Sainte-Justine, Montréal, Québec, Canada
5. Department of Medicine-DIMED, University of Padua, Padua, Italy.