1. Birth Defects Registry New York State Department of Health Albany New York USA
2. Department of Epidemiology, Human Genetics, and Environmental Sciences UTHealth School of Public Health Houston Texas USA
3. Medical Genetics Unit, Department of Pediatrics MassGeneral Hospital for Children Boston Massachusetts USA
4. Division of Medical Genetics, Department of Pediatrics University of Utah Salt Lake City Utah USA
5. Division of Medical Genetics, Department of Pediatrics Weill Cornell Medical College New York New York USA
6. Department of Epidemiology University of Iowa Iowa City Iowa USA
7. Center for Birth Defects Research and Prevention Massachusetts Department of Public Health Boston Massachusetts USA
8. Department of Epidemiology and Biostatistics School of Public Health Rensselaer New York USA