Affiliation: | 1. Division of Biomaterials and Bioengineering, Department of Preventive and Restorative Dental Sciences, University of California at San Francisco, San Francisco, CA, USA;2. Portland Shriner's Research Center, Oregon Health & Science University, Portland, OR, USA;3. Division of Periodontology, Department of Orofacial Sciences, University of California at San Francisco, San Francisco, CA, USA |