1. Global Smile Foundation, Norwood, MA, USA
2. Oregon Health & Science University, Portland, OR, USA
3. Tufts University School of Medicine, Boston, MA, USA
4. Ochsner Medical Center, New Orleans, LA, USA
5. Yale School of Medicine, New Haven, CT, USA
6. New York University College of Dentistry, New York, NY, USA
7. The University of Maryland Medical System, Baltimore, MD, USA
8. Harvard Medical School, Boston, MA, USA
9. Boston University School of Medicine, Boston, MA, USA