1. Infectious Disease Clinical Research Program, Uniformed Services University of the Health Sciences, Bethesda, Maryland
2. Infectious Disease Clinic, Naval Medical Center San Diego, California
3. Merck Research Laboratories, North Wales, Pennsylvania
4. Infectious Disease Service, San Antonio Military Medical Center, Texas
5. Infectious Disease Clinic, Walter Reed Army Medical Center, Washington, District of Columbia
6. Infectious Disease Clinic, National Naval Medical Center, Bethesda, Maryland
7. Infectious Disease Clinic, Naval Medical Center Portsmouth, Virginia
8. Infectious Disease Clinic, Orlando Regional Medical Clinic, Florida