1. Children's National Medical Center Washington District of Columbia U.S.A
2. University of Oklahoma Health Sciences Center Oklahoma City Oklahoma U.S.A
3. Virginia Commonwealth University Medical Center Richmond Virginia U.S.A
4. Children's Hospital Los Angeles Los Angeles California U.S.A
5. Lundbeck LLC Deerfield Illinois U.S.A
6. Weill Cornell Medical Center New York New York U.S.A