1. Department of Clinical Dentistry, Faculty of Medicine University of Bergen Bergen Norway
2. Chair of Tissue Engineering and Regenerative Medicine (TERM) University Hospital Würzburg Würzburg Germany
3. Translational Center Regenerative Therapies Fraunhofer Institute for Silicate Research (ISC) Würzburg Germany
4. Department Electrical Engineering University for Applied Sciences Würzburg/Schweinfurt Schweinfurt Germany