Affiliation: | 1. Center for Rhinology and Allergology Wiesbaden, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Germany;2. Laboratorios LETI SL, Tres Cantos, Spain;3. LETI Pharma, Witten, Germany;4. Vilnius University Faculty of Medicine, Clinic of Children Diseases Vilnius, Lithuania |