1. Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac, Thoracic, Vascular Sciences and Public Health University of Padova Padova Italy
2. Department of Women's and Children's Health University of Padova Padova Italy
3. Division of Pediatric Emergency Medicine University Hospital of Padova Padova Italy
4. Respiratory Diseases Clinic Department of Cardiac, Thoracic, Vascular Sciences and Public Health University of Padova Padova Italy
5. University of Bologna Bologna Italy
6. Department of Actuarial Sciences Hacettepe University Ankara Turkey
7. Environmental Protection and Prevention Agency of the Veneto Region Venezia Italy