1. Institute for Biomedical Engineering, Swiss Federal Institute of Technology and University of Zurich, Zurich, Switzerland, Department of Cranio-Maxillofacial Surgery, University Hospital Zurich, Zurich, Switzerland, Institute of Pathology, Johannes Gutenberg University, Mainz, Germany, and Laboratory for Regenerative Medicine and Pharmacobiology, Institute of Bioengineering and Institute for Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland