**Acknowledgements**

Results of this research are supported by grant no. APVV-15-0462: Research on sophisticated methods for analyzing the dynamic properties of respiratory epithelium's microscopic elements and grant no. APVV-17-0218: Investigation of biological tissues with electromagnetic field interaction and its application in the development of new procedures in the design of electrosurgical instruments.

Special thanks go to the medical experts and employees from the Clinic of Children and Adolescents (Jessenius Faculty of Medicine in Martin and Martin University Hospital).
