1. Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
2. International Centre for Diffraction Data, Newtown Square, Pennsylvania, United States
3. Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, New York, United States
4. Department of Periodontology, University of Florida College of Dentistry, Gainesville, Florida, United States