1. GeneDx Gaithersburg Maryland
2. Valley Children's Hospital Central California Madera California
3. The Division of GeneticsThe Children's Hospital of Philadelphia Philadelphia Pennsylvania
4. The Department of PediatricsThe Perelman School of Medicine, The University of Pennsylvania Philadelphia Pennsylvania
5. Children's Hospital of Pittsburgh of UPMC Pittsburgh Pennsylvania
6. The Departments of PediatricsInternal Medicine, and Cardiology, University of Kentucky Lexington Kentucky
7. Cleveland Clinic Genetics Cleveland Ohio
8. Phoenix Children's Hospital Phoenix Arizona