1. Department of Pathology and Laboratory Medicine, Brown University, Providence, RI 02906, USA
2. Department of Biochemistry, Medical University of Warsaw, 02-097 Warsaw, Poland
3. Department of Otolaryngology, Centre of Postgraduate Medical Education, 02-097 Warsaw, Poland
4. Department of Hyperbaric Medicine, Military Institute of Medicine-National Research Institute, 00-902 Warsaw, Poland
5. Department of Otolaryngology, Medical University of Bialystok, 15-276 Bialystok, Poland
6. Department of Otolaryngology, The Children’s Memorial Health Institute, 00-328 Warsaw, Poland
7. Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany