1. Department of Anesthesiology University Hospital Erlangen, Faculty of Medicine, Friedrich Alexander‐Universität Erlangen‐Nürnberg Erlangen Germany
2. Department of Oral and Maxillofacial Surgery University Hospital Erlangen, Faculty of Medicine, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg Erlangen Germany
3. Institute of Radiology, University Hospital Erlangen, Faculty of Medicine, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg Erlangen Germany