West:

* City of Hope, Duarte, Calif.
* Mayo Clinic Hospital, Phoenix
* Methodist Hospital, Houston
* Oregon Health and Science University Hospital, Portland
* Stanford Hospital and Clinics, Stanford, Calif.
* UCLA Medical Center, Los Angeles
* University Medical Center, Tucson, Ariz.
* University of California, San Diego Medical Center
* University of California, San Francisco Medical Center
* University of Colorado Hospital, Denver