1. Stanford University Palo Alto California USA
2. University of Puerto Rico School of Medicine San Juan PR, USA
3. Greenwood Genetic Center Miami Florida USA
4. University of Miami Miller School of Medicine Miami Florida USA
5. Boston Children's Hospital Boston Massachusetts USA
6. Department of Pediatrics Cedars‐Sinai Medical Center David Geffen School of Medicine Los Angeles California USA
7. Medical Genetics ASST Santi Paolo e Carlo San Paolo Hospital Milan Italy
8. Departments of Pathology, Laboratory Medicine, and Pediatrics Division of Genetic and Genomic Medicine School of Medicine University of California Irvine Irvine California USA
9. Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
10. Departments of Medical Genetics and Pediatrics University of Calgary Calgary Alberta Canada
11. Department of Pediatrics University of Tennessee College of Medicine Chattanooga Tennessee USA
12. University of Washington Seattle Washington USA
13. Department of Pediatrics University of California San Diego and Rady Children's Hospital San Diego California USA