1. Department of Otolaryngology with Division of Cranio-Maxillo-Facial Surgery in Military Institute of Medicine, Warsaw, Poland
2. Department of Otolaryngology and Laryngological Oncology. Medical University of Lodz, Poland
3. ENT Department, Children's Hospital, Warsaw, Poland
4. Chair of Pharmacology, Dept. of Clinical Pharmacology Jagiellonian University College of Medicine, Krakow Poland University Hospital in Krakow
5. Department of Prevention of Environmental Hazards and Allergology, Medical University of Warsaw, Poland