1Università Vita Salute San Raffaele, Milano, Italy
2Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
3Unit of Clinical Rheumatology, Azienda Socio Sanitaria Territoriale Gaetano Pini, Milano, Italy
4Department of Clinical Science of Community Health and Research Center for Adult and Pediatric Rheumatic Diseases, University of Milan, Milano, Italy
5Referral Center for Systemic Autoimmune Diseases, La Fondazione IRCCS Ca' Granda Ospedale Maggiore di Milano Policlinico, Milano, Italy
6University of Milan, Milano, Lombardia, Italy
Correspondence to Dr Giuseppe A. Ramirez, Università Vita Salute San Raffaele, 20132 Milano, Italy; [email protected]
Received July 17, 2020; revision received July 26, 2020; Accepted July 27, 2020
Acknowledgments We are grateful to the B.I.R.D. Foundation Europe, Costozza di Longare (VI), Italy for its support to the School of Allergy and Immunology of the Università Vita-Salute San Raffaele, Milan, Italy.
Contributors GAR designed the study, collected and analysed the data and drafted the manuscript. All authors contributed to the design of the study and to revise it critically for important intellectual content. All authors contributed in revising the manuscript and approved its final version.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting or dissemination plans of this research.
Provenance and peer review Not commissioned; internally peer reviewed.
Patient consent for publication Not required.
