1. Department of Genetics; Wroclaw Medical University; Wroclaw Poland
2. Department of Biology and Medical Parasitology; Wroclaw Medical University; Wroclaw Poland
3. Department of Mathematics and Statistics; University of Limerick; Limerick Ireland
4. Department of Clinical Otolaryngology; 4th Military Hospital; Wroclaw Wroclaw Poland
5. Lower Silesian Oncology Center; Wroclaw Wroclaw Poland
6. Department of Otolaryngology; Wroclaw Medical University; Wroclaw Poland