1. 1Department of Family Medicine, University of Connecticut Health Center, Farmington, Connecticut, U.S.A.
2. 2Department of Sociology, University of Nebraska–Lincoln, Lincoln, Nebraska, U.S.A.
3. 3Department of Private Practice, Division of Pediatrics, Berkshire Medical Center and private practice, Pittsfield, MA, U.S.A.
4. 4Department of Medicine, University of Pennsylvania, U.S.A.
5. 5Department of Community Medicine, University of Connecticut, Farmington, Connecticut, U.S.A.
6. 6Department of Oral Health and Diagnostic Sciences, University of Connecticut, Farmington, Connecticut, USA
7. 7Department of Children and Families, Office for Research and Evaluation Bureau of Continuous Quality Improvement, Hartford, CT, U.S.A