1. Department of Thoracic Surgery, Ruhrlandklinik, University Medicine Essen, Essen, Germany
2. Department of Otorhinolaryngology, University Medicine Essen, Essen, Germany
3. Department of Anesthesiology, Ruhrlandklinik, University Medicine Essen, Essen, Germany
4. Department of Anaesthesiology and Intensive Care Medicine, University Hospital Magdeburg, Magdeburg, Sachsen-Anhalt, Germany
5. Division of Interventional Pneumology, Ruhrlandklinik, University Medicine Essen, Essen, Germany