Table 1

Participating institutions

University of Mississippi School of DentistryJacksonMississippi
University of California, Los Angeles School of DentistryLos AngelesCalifornia
Western University of Health Sciences College of Dental MedicinePomonaCalifornia
Loma Linda University School of DentistryLoma LindaCalifornia
University of Florida College of DentistryGainesvilleFlorida
University of Louisville School of DentistryLouisvilleKentucky
Harvard School of Dental MedicineBostonMassachusetts
Columbia University College of Dental MedicineNew YorkNew York
University of Tennessee Health Science Center College of DentistryMemphisTennessee
University of Texas School of Dentistry at HoustonHoustonTexas