1. HIV Research Program, Walter Reed Army Medical Center, Washington, DC.
2. Pharmacy Support Section, Walter Reed Army Medical Center
3. U.S. Army Centralized Allergen Extract Laboratory, Walter Reed Army Medical Center; at the time of this study he was Hospital Pharmacy Resident, Letterman Army Medical Center, Presidio of San Francisco, CA.
4. Pharmacy Service, Walter Reed Army Medical Center
5. Office of the Surgeon General, Department of the Army, Washington, DC.