1. Clarion Research Group, Clarion, PA. Department of Restorative Dentistry, State University of New York at Buffalo, Buffalo, NY.
2. LoB5 unit, Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju, South Korea. Department of Stomatology, Oral Surgery, and Dental and MaxilloFacial Radiology, School of Dental Medicine, University of Geneva, Geneva, Switzerland.