1. Department of Craniomaxillofacial Surgery, University Hospital Zürich, Zürich, Switzerland
2. Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik Institutsteil Dresden, Dresden, Germany
3. Sächsisches Textilforschungsinstitut eV, Chemnitz, Germany
4. Department of Neurosurgery, University Hospital Leipzig, Leipzig, Germany
5. Department of Craniomaxillofacial Surgery, Hannover Medical School, Hannover, Germany
6. Department of Craniomaxillofacial Surgery, University Hospital Schleswig Holstein Campus Kiel, Kiel, Germany