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Article History

Received: 29 April 2020

Accepted: 11 June 2020

First Online: 18 June 2020

Ethics approval and consent to participate

: Not applicable.

: Requested (pending) (for reproducing Tables InternalRef removed and InternalRef removed).

: Enrico Heffler reports personal fees from AstraZeneca, Sanofi, Novartis, Teva, GSK, Circassia, Boehringer Ingelheim, Valeas, Nestlè Purina, outside the submitted work. Giorgio Walter Canonica reports grants and personal fees from Menarini, Alk Abello’, Anallergo Boehringer Ingelheim, Chiesi, Circassia, Genentech, Guidotti Malesci, GSK, Hal Allergy, Meda, Merck, Merck Sharp & Dome Novartis Recordati-InnuvaPharma, Roche, Sanofi Stallergenes, UCB Pharma, Uriach Pharma, Teva Astrazeneca, Thermo Fisher, Valeas, Vibor Pharma, outside the submitted work. Francesca Puggioni reports personal fees from Astrazeneca, Chiesi, GSK, Guidotti, Menarini, Mundipharma Novartis, Sanofi, Valeas, Allergy Therapeutics, Almirall outside the submitted work. Giovanni Paoletti reports personal fees from Novartis and Lusofarma, outside the submitted work. Giacomo Malipiero reports personal fees from Allergy Therapeutics, outside the submitted work. Francesca Racca, Corrado Pelaia, Sebastian Ferri, Donatella Lamacchia, Giuseppe Cataldo, Lina Spinello, Melissa Sansonna, and Morena Merigo do not have potential conflict of interest to declare.