1. Dental School Pontificia Universidad Católica de Chile Santiago Chile
2. Harvard Medical School Boston Massachusetts USA
3. Lincoln College University of Oxford Oxford UK
4. Arabian Gulf University Manama Bahrain
5. Massachusetts General Hospital Institute of Health Professions Boston Massachusetts USA
6. University of Guadalajara Guadalajara Mexico
7. Harvard Macy Institute Boston Massachusetts USA
8. Brigham and Women's Hospital Boston Massachusetts USA