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