1. New York State Department of Health; Albany New York
2. Department of Epidemiology and Biostatistics, School of Public Health; University at Albany; Rensselaer New York
3. U.S. Centers for Disease Control and Prevention; Atlanta Georgia
4. Oak Ridge Institute for Science and Education; Oak Ridge Tennessee
5. Divisions of Cardiovascular Medicine and Pediatric Cardiology; Stanford School of Medicine; Stanford California
6. Children's Hospital at Montefiore; Bronx New York
7. Albert Einstein College of Medicine; Bronx New York