1. Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
2. Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
3. Leibniz Institute of Aging – Fritz Lipmann Institute, CF DNA sequencing, 07745 Jena, Germany
4. Clinic for Otorhinolaryngology, Head and Neck Surgery, Technical University of Munich, 80333 Munich, Germany