1. Mount Carmel Cancer Genetics Program Mount Carmel Health System Columbus Ohio
2. Genetic Counseling Graduate Program, Division of Human Genetics The Ohio State University Columbus Ohio
3. Center for Biostatistics The Ohio State University Columbus Ohio
4. Down Syndrome Program, Division of Medical Genetics and Metabolism, Department of Pediatrics Massachusetts General Hospital Boston Massachusetts
5. Department of Pediatrics Harvard Medical School Boston Massachusetts
6. The Institute for Genomic Medicine Clinical Laboratory Nationwide Children's Hospital Columbus Ohio
7. Nisonger Center The Ohio State University Columbus Ohio