1. Newark Beth Israel Hospital Newark New Jersey USA
2. Department of Integrated Dentistry Faculty of Dentistry, Universitat International de Catalunya (UIC) Barcelona Spain
3. Langhorne Dental Care Levittown Pennsylvania USA
4. Department of Oral Health Policy and Epidemiology Harvard School of Dental Medicine Boston Massachusetts USA
5. Department of Restorative Dentistry and Biomaterials Sciences Harvard School of Dental Medicine Boston Massachusetts USA