1. Pediatric Emergency Room, Santobono’s Hospital, Naples, Italy
2. Pediatric Emergency Room, Pediatric Department, University of Varese, Varese, Italy
3. Nelson Institute of Environmental Medicine, New York University School of Medicine, New York, New York, USA
4. Pediatric Emergency Room, Pediatric Department, University of Bologna, Bologna, Italy
5. Pediatric Emergency Room, Maggiore’s Hospital, Bologna, Italy
6. Pediatric Emergency Room, Pediatric Department, Torre Galli, Florence, Italy
7. Pediatric Emergency Room, Mayer Hospital, Florence, Italy
8. Pediatric Emergency Room, Ponte a Niccheri Hospital, Florence, Italy
9. Pediatric Emergency Room, Pediatric Department, Salesi Hospital, Ancona, Italy
10. Pediatric Emergency Room, Gallarate Pediatric Hospital, Gallarate, Italy
11. Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA