| Affiliation: | 1. Department of Proshodontics, Peking University School and Hospital of Stomatology, , Beijing, China;2. Department of Oral and Maxillofacial Radiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Free University, , Amsterdam, The Netherlands;3. School of Business, Renmin University of China, , Beijing, China;4. Department of Oral Implantology and Prosthodontics, Academic Centre for Dentistry Amsterdam (ACTA), Research Institute MOVE, University of Amsterdam and Free University, , Amsterdam, The Netherlands |
