1. Department of Preventive and Community Dentistry; College of Dentistry, University of Iowa
2. Department of Family Dentistry; College of Dentistry, University of Iowa
3. Department of Preventive and Community Dentistry and Associate Clinical Fellow, Department of Oral Pathology, Radiology, and Medicine; College of Dentistry, University of Iowa
4. Department of Oral Pathology, Radiology, and Medicine; College of Dentistry, University of Iowa