1   Department of Otorhinolaryngology, University Medical Center Bonn, Bonn, Germany

,

Carla Dörsching

1   Department of Otorhinolaryngology, University Medical Center Bonn, Bonn, Germany

,

2   Department of Otorhinolaryngology, Head & Neck Surgery, Saarland University Hospital and Saarland University Faculty of Medicine, Homburg, Germany

,

Jennis Gabrielpillai

1   Department of Otorhinolaryngology, University Medical Center Bonn, Bonn, Germany

,

Sven Becker

3   Department of Otorhinolaryngology, Head and Neck Surgery, University of Tübingen Medical Center, Tuebingen, Germany

,

4   Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Mannheim, Germany

,

Benedikt Kramer

5   Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Centre Mannheim, Mannheim, Germany

,

Christoph Sproll

6   Department of Oral and Maxillofacial Surgery, Medical Faculty and University Hospital Düsseldorf, Duesseldorf, Germany

,

Mirco Schapher

7   Department of Otorhinolaryngology, Head and Neck Surgery, Paracelsus Medical University, Nuremberg, Germany

,

Miguel Goncalves

8   Department of Otorhinolaryngology, Plastic Head and Neck Surgery, RWTH Aachen University Hospital, Aachen, Germany

,

Naglaa Mansour

9   Department of Otorhinolaryngology, University Medical Center Freiburg, Freiburg, Germany

,

Benedikt Hofauer

10   Department of Otorhinolaryngology, Head and Neck Surgery, Technical University of Munich Hospital Rechts der Isar, Munich, Germany

,

Wieland H Sommer

11   Department of Radiology, LMU University Hospital, Munich, Germany

,

Felix von Scotti

12   Ultrasound Division, Otorhinolaryngology Center Münsterland, Münster, Germany

,

Johannes Matthias Weimer‡

13   Rudolf-Frey Teaching Department, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany

,

Julian Künzel‡

14   Department of Otorhinolaryngology, Universitätsklinikum Regensburg, Regensburg, Germany