1. Section of Oral, Diagnostic, and Rehabilitation Sciences Columbia University College of Dental Medicine New York New York USA
2. Department of Health Policy and Management, Professor Emeritus of Dental Medicine (in Pediatric Dentistry) and Health Policy & Management at Columbia University Irving Medical Center Columbia University College of Dental Medicine and Mailman School of Public Health New York New York USA
3. Department of Biostatistics Mailman School of Public Health New York New York USA
4. Department of Human Development Teachers College Columbia University New York New York USA
5. Section of Growth and Development Columbia University College of Dental Medicine New York New York USA
6. Columbia Data Coordinating Center, Mailman School of Public Health Columbia University Irving Medical Center New York New York USA