1. Texas Tech University Health Science Center, Woody L. Hunt School of Dental Medicine
2. Department of Operative Dentistry, University of Iowa College of Dentistry
3. Division of Prosthodontics, Montefiore Medical Center Department of Dentistry
4. Department of Biochemistry, Tokyo Dental College
5. Department of Operative Dentistry, Nihon University School of Dentistry
6. Department of Restorative Dentistry, Oregon Health & Science University School of Dentistry