1. Michael E. DeBakey Veterans Affairs Medical Center/Baylor College of Medicine (J.M.G.), Houston, Texas 77030
2. Harbor-UCLA Medical Center and Los Angeles Biomedical Research Institute (R.S., C.W.), Torrance, California 90502
3. Radiant Research, Inc (M.Ky.), Chicago, Illinois 60654
4. DGD Clinic (M.Ki.), San Antonio, Texas 78229
5. Massachusetts General Hospital/Harvard Medical School (B.M.K.B.), Boston, Massachusetts 02215
6. Oregon Health and Science University (D.C., K.C.J.Y.), Portland, Oregon 97239
7. Cedars-Sinai Medical Center (V.B.), Los Angeles, California 90048
8. Johns Hopkins Medical Institutions (A.D.), Baltimore, Maryland 21205
9. Northwestern University Feinberg School of Medicine (M.E.M.), Chicago, Illinois 60611
10. Veterans Affairs Puget Sound HCS/University of Washington (G.R.M.), Seattle and Tacoma, Washington 98108