1. Department of Maxillofacial Surgery for Children, Chorzow Hospital for Paediatrics and Oncology, 41-500 Chorzów, Poland
2. Postgraduate Educational Centre of Dentistry DENTARIS, School of Medicine, Katowice Business University, 40-659 Katowice, Poland
3. Department of Otorhinolaryngology and Oncological Laryngology, Medical University of Silesia, 41-800 Zabrze, Poland
4. Department of Toxicology and Bioanalysis, Medical University of Silesia, 41-200 Sosnowiec, Poland
5. Department of Facial Aesthetics and Cosmetology, School of Medicine, Katowice Business University, 40-659 Katowice, Poland