1. Department of Cranio-Maxillofacial Surgery; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
2. Department of Oral and Maxillofacial Surgery, School of Life; Dentistry at Niigata, The Nippon Dental University; Niigata Japan
3. Department of Periodontology, College of Dental Medicine; Nova Southeastern University; Fort Lauderdale Florida
4. Cell Therapy Institute, Center for Collaborative Research, Nova Southeastern University; Fort Lauderdale Florida