1. UOC Dermatologia Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
2. Dipartimento di Fisiopatologia Medico‐Chirurgica e dei Trapianti Università degli Studi di Milano Milan Italy
3. Dipartimento di Scienze Biomediche e Cliniche “L. Sacco” Università degli Studi di Milano Milan Italy
4. Department of Medical Sciences Section of Dermatology University of Turin Turin Italy
5. Department of Clinical and Experimental Medicine‐Respiratory Medicine & Allergy University of Catania Catania Italy
6. Dermatology Unit Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine University of Modena and Reggio Emilia Modena Italy
7. Clinical Dermatology Department of Biomedical, Surgical and Dental Sciences IRCCS Galeazzi Orthopaedic Institute University of Milan Milan Italy
8. Dermatology Unit Department of Clinical and Molecular Sciences Polytechnic Marche University Ancona Italy
9. Department of Medicine Section of Dermatology University of Verona Verona Italy
10. Department of Biomedical Science and Human Oncology Section of Dermatology University of Bari Bari Italy
11. Section of Clinical, Allergological and Venereological Dermatology Department of Medicine University of Perugia Perugia Italy
12. Service of Occupational and Environmental Allergic Dermatology San Gallicano Dermatology Institute for Research and Care Rome Italy
13. Department of Internal Medicine Respiratory Disease Clinic IRCCS Humanitas Clinical and Research Center Humanitas University Milan Italy
14. Department of Emergency and Organ Transplantation School of Allergology and Clinical Immunology University of Bari Aldo Moro Bari Italy
15. Ambulatorio di Allergologia Clinica San Carlo Paderno Dugnano, Milan Italy