1. Brown University School of Medicine, Providence, Rhode Island
2. Lifespan Information Services, Providence, Rhode Island
3. University of Texas Southwestern Medical Center at Dallas, Dallas, Texas
4. College of Physicians and Surgeons of Columbia University, New York, New York
5. University of Colorado at Denver and Health Sciences Center, Denver, Colorado
6. Kaiser Permanente Medical Center, Los Angeles, California
7. Children’s Hospital Boston, Boston, Massachusetts