Received: 15 July 2020
Accepted: 10 October 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: The institutional review board of the University Hospital Würzburg consented to the retrospective review and publication of anonymized data.
: No similar data has been or will be published or submitted elsewhere while our manuscript is under consideration at Allergy, Asthma & Clinical Immunology.
: The authors declare that they have no conflicts of interest.