1. Division of Maxillofacial Prosthodontics; Hospital Dentistry Institute; University of Iowa Hospitals and Clinics
2. Center for Dental Research; Loma Linda University School of Dentistry
3. Division of Biostatistics and Research Design; University of Iowa College of Dentistry and Dental Clinics
4. Department of Prosthodontics; University of Iowa College of Dentistry and Dental Clinics