1. Department of Allergology National Research Institute of Tuberculosis and Lung Diseases Rabka‐Zdroj Poland
2. Department of Pathophysiology Institute of Medical Science Medical College of Rzeszow University Rzeszow Poland
3. Paediatric and Allergology Department Specialty Hospital Jaslo Poland
4. Department of Paediatrics and Allergy Medical University of Lodz Lodz Poland
5. N. Copernicus Memorial Hospital Lodz Poland
6. Institute of Health Science Podhale State College of Applied Sciences Nowy Targ Poland
7. Department of Internal Medicine, Asthma and Allergy Medical University of Lodz Poland
8. Department of Paediatric Pulmonology Medical University of Lodz Lodz Poland