1. Birth Defects Registry New York State Department of Health Albany New York USA
2. Department of Epidemiology and Biostatistics School of Public Health, University at Albany Rensselaer New York USA
3. Department of Epidemiology, Human Genetics and Environmental Sciences University of Texas Health Science Center at Houston (UTHealth) School of Public Health Dallas Texas USA
4. Arkansas Center for Birth Defects Research and Prevention Fay W. Boozman College of Public Health, University of Arkansas for Medical Science Little Rock Arkansas USA
5. Medical Genetics Unit, Department of Pediatrics MassGeneral Hospital for Children Boston Massachusetts USA