1. UOC General Medicine Immunology and Allergology Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
2. U.O.S. Allergology Hospital S. Anna Como ASST Lariana Como Italy
3. Epidemiology Unit Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
4. Allergy and Clinical Immunology Residency University of Milan Italy
5. DISCLIMO (Department of Clinical and Molecular Sciences) Università Politecnica delle Marche Ancona Italy
6. Allergy Unit, Department of Internal Medicine University Hospital Ospedali Riuniti Ancona Italy