1San Diego Healthcare System and the Departments of Medicine and Pathology, University of California, San Diego, Geriatric Research, Education and Clinical Center, Durham VA Medical Center and Center for Aging
2University of Colorado Health Sciences Center, Denver, Geriatric Research, Education and Clinical Center, Durham VA Medical Center and Center for Aging
3VA Cooperative Studies Program Coordinating Center, West Haven, Conn., Geriatric Research, Education and Clinical Center, Durham VA Medical Center and Center for Aging
4Department of Medicine, Duke University Medical Center, Durham, N.C.
5Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
6St. Louis VA Medical Center and the Department of Medicine, Washington University, St. Louis
7VA Boston Healthcare System, Boston
8VA New York Harbor Healthcare System and the Department of Medicine, New York University School of Medicine, New York
9Columbia University, New York
10New Mexico VA Healthcare System, Albuquerque
11VA Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Albuquerque
12National Institute of Allergy and Infectious Diseases, Bethesda, MD
13Minneapolis VA Medical Center, Minneapolis
14VA Ann Arbor Healthcare System, Ann Arbor, Mich.
15Edward Hines Jr. VA Hospital, Chicago
16VA Puget Sound Healthcare System, Seattle
17University of Rochester Medical Center, Rochester, N. Y.
18Vanderbilt University Medical Center, Nashville
19Baltimore VA Medical Center, Baltimore
20VA Palo Alto Healthcare System, Palo Alto, Calif.
21Baylor College of Medicine, Houston
22University of Texas Health Science Center, San Antonio, San Antonio
23Northport VA Medical Center, Northport, N.Y.
24James A. Haley Veterans Hospital, Tampa, Fla.
25Lexington VA Medical Center, Lexington, KY
26Merck Research Laboratories, West Point, PA