1 Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands. [email protected].
2 Department of Otorhinolaryngology, Head and Neck Surgery, University of Giessen, Giessen, Germany.
3 Department of Otorhinolaryngology, Hospital Clinic, University of Barcelona Medical School, Barcelona, Spain.
4 Poznań Supercomputing and Networking Center, Poznań, Poland.
5 Department of Otolaryngology and Laryngological Oncology, University of Medical Sciences, Poznań, Poland.