1. Boston Children's Hospital Boston Massachusetts
2. American Thrombosis and Hemostasis Network Rochester New York
3. Newark Beth Israel Medical Center Newark New Jersey
4. University of Vermont Burlington Vermont
5. Versiti Blood Center of Wisconsin Milwaukee Wisconsin
6. Children’s Mercy Hospital Kansas City Missouri
7. Rady Children's Hospital San Diego San Diego California
8. Monroe Carell Jr. Children’s Hospital at Vanderbilt Nashville Tennessee
9. Mary M. Gooley Hemophilia Center Rochester New York
10. Children's Hospital of Philadelphia Philadelphia Pennsylvania
11. St. Jude Children's Research Hospital Memphis Tennessee