1. Medical Genetics Branch National Human Genome Research Institute National Institutes of Health Bethesda Maryland
2. Center for Medical Genetics College of Medicine and Health Sciences University of Rwanda Huye Rwanda
3. Division of Human Genetics The Children's Hospital of Philadelphia Clinical Genetics Center Perelman School of Medicine of the University of Pennsylvania Philadelphia Pennsylvania
4. Department of Paediatrics and Adolescent Medicine LKS Faculty of Medicine The University of Hong Kong, Pokfulam, Hong Kong
5. Greenwood Genetic Center Greenwood South Carolina
6. Laboratory of Molecular Cardiology National Heart Lung and Blood Institute National Institutes of Health Bethesda Maryland
7. Comparative Genomics Analysis Unit National Human Genome Research Institute National Institutes of Health Bethesda Maryland