From the:
1 Dept. of Pediatric Pneumology, Immunology and Critical Care Medicine, Charité Universitätsmedizin - Berlin, Berlin, Germany
2 Dept of Pediatrics, Unit of Allergy, University of Messina, Messina, Italy
3 Predictive and Preventive Medicine Research Unit, Multifactorial and Systemic Diseases Research Area, Pediatric Allergology Unit, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
4 Immunology and Allergy Unit, “S. Maria degli Angeli” Hospital, Pordenone, Italy
5 Pediatric Allergology Unit, Sandro Pertini Hospital, Rome, Italy
6 Dept. of Biology, University of Rome “Tor Vergata”, Rome, Italy
7 Center of Aerobiology, ARPA, Pordenone, Italy
Word count: 3479
Tables: 4
Figures: 2