Affiliation: | 1.Department of Otorhinolaryngology, Head and Neck Surgery, University of Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany ;2.Department of Otorhinolaryngology, Munich University (LMU), Munich, Germany ;3.Department of Internal Medicine-Cardiology, University of Munster, Munster, Germany ;4.Department of Pathology, University of Bonn, Bonn, Germany ;5.Department of Otorhinolaryngology, University of Goettingen, Göttingen, Germany ; |