Affiliation: | a Department of General Practice and Primary Care, University of Aberdeen, Aberdeen, United Kingdom b University of Genova DIMI, Genova, Italy, for WAO c Aarhus University Hospital, Department of Respiratory Diseases, Aarhus, Denmark, for WAO d Catholic University of Córdoba, Córdoba, Argentina, for WAO e Turku Allergy Center, Turku, Finland, for WAO f University of Tennessee Health Science Center, Memphis, TN, USA, for ACAAI g Institute for Asthma & Allergy, Chevy Chase, MD, USA, for WAO |