1. Departments of Internal Medicine and Pediatrics, Massachusetts General Hospital Massachusetts General Hospital Boston Massachusetts USA
2. Down Syndrome Program, Division of Medical Genetics and Metabolism, Department of Pediatrics Massachusetts General Hospital Boston Massachusetts USA
3. Department of Pediatrics Harvard Medical School Boston Massachusetts USA
4. Department of Neurology Harvard Medical School Boston Massachusetts USA
5. Boston Children's Hospital Down Syndrome Program Boston Children's Hospital Boston Massachusetts USA
6. Pediatric Unit and Pediatric Emergency Department Bambino Gesù Children's Hospital Rome Italy
7. Department of Internal Medicine Geisinger Health System Danville Pennsylvania USA
8. Mater Research Institute The University of Queensland South Brisbane Queensland Australia
9. Department of Pediatrics Duke University Medical Center Durham North Carolina USA
10. Down Syndrome Center of Western Pennsylvania UPMC Children's Hospital of Pittsburgh Pittsburgh Pennsylvania USA