Affiliation: | 1. Department of Oral Surgery and Radiology, Medical University of Graz, , Graz, Austria;2. Institute of Experimental and Clinical Cell Therapy & Spinal Cord Injury‐Tissue Regeneration Center, Paracelsus Medical University, , Salzburg, Austria;3. Stem Cell Research Unit, Medical University of Graz, , Graz, Austria;4. Department of Oral and Maxillofacial Surgery, Medical University of Freiburg, , Freiburg, Germany |