| Albany Medical Center, Albany, N.Y. |
Allegheny General Hospital, Pittsburgh |
| Beth Israel Hospital, Boston |
Brigham and Women's Hospital, Boston |
| Cedars-Sinai Medical Center, Los Angeles |
Children's Hospital, Boston |
| Children's Hospital, Denver |
Children's Hospital Medical Center, Cincinnati |
| Children's Hospital and Medical Center, Seattle |
Children's Hospital of Philadelphia |
| Children's Hospital of Pittsburgh |
Children's National Medical Center, Washington, D.C. |
| Cleveland Clinic |
Columbia-Presbyterian Medical Center, New York |
| Dana-Farber Cancer Institute, Boston |
Dartmouth-Hitchcock Medical Center |
| Doheny Eye Hospital, Los Angeles |
Duke University Medical Center, Durham, N.C. |
| Emory University Hospital, Atlanta |
Fox Chase Cancer Center, Philadelphia |
| Georgetown University Hospital, Washington, D.C. |
Greater Baltimore Medical Center, Baltimore |
| Harborview Medical Center, Seattle |
Hennepin County Medical Center, Minneapolis |
| Hospital for Joint Diseases-Orthopedic Institute, New York |
Hospital for Special Surgery, New York |
| Inova Fairfax Hospital |
Illinois Masonic Medical Center, Chicago |
| Johns Hopkins Hospital, Baltimore |
Lehigh Valley Hospital, Allentown, Penn. |
| MacNeal Hospital, Berwyn, Ill. |
Magee-Womens Hospital, Pittsburgh |
| Maricopa Medical Center, Phoenix |
Massachusetts General Hospital, Boston |
| Mayo Clinic, Rochester, Minn. |
McLean Hospital, Belmont, Mass. |
| Medical University of South Carolina, Charleston |
Memorial Sloan-Kettering Cancer Center, New York |
| Methodist Hospital, Houston |
Mount Sinai Medical Center, Cleveland |
| Mount Sinai Medical Center, New York |
New York University Medical Center |
| New York Beth Israel Medical Center |
North Carolina Baptist Hospital, Winston-Salem |
| Northwestern Memorial Hospital, Chicago |
Ohio State University Medical Center, Columbus |
| Parkland Memorial Hospital, Dallas |
Penn State's Milton S. Hershey Medical Center, Hershey |
| Rehabilitation Institute of Chicago |
St.Luke's Episcopal Hospital |
| Stanford University Hospital, Stanford, Calif. |
Temple University Hospital, Philadelphia |
| TIRR (The Institute for Rehabilitation and Research), Houston |
UCSD Medical Center, San Diego |
| University of Colorado Hospital |
University of Arizona, Arizona Health Sciences Center |
| University Hospital of Arkansas, Little Rock |
University Hospspital of Cleveland |
| University of Alabama Hospital at Birmingham |
University of Illinois Health Sciences Center |
| University of Iowa Hospitals and Clinics, Iowa City |
University of Maryland Medical System, Baltimore |
| University of Miami, Jackson Memorial Hospital |
University of Michigan Medical Center, Ann Arbor |
| University of North Carolina Hospitals, Chapel Hill |
University of Pennsylvania Medical Center |
| University of Pittsburgh Medical Center |
University of Texas Medical Branch Hospitals, Galveston |
| University of Utah Hospital and Clinics, Salt Lake City |
University of Virginia Health Sciences Center, Charlottesville, Va. |
| University of Washington Medical Center, Seattle |
University of Wisconsin Hospital and Clinics, Madison, Wi. |
| Wills Eye Hospital, Philadelphia |
Wilmer Eye Institute |
| Yale-New Haven Hospital |
|