1. Letter from Anthony Fauci, National Institutes of Health to Harold Varmus Publication: Produced: 3 May 1985 Subject(s): RetroviridaeTerminology as TopicAcquired Immunodeficiency Syndrome Archival Collection: The Harold Varmus Papers (Profiles in Science)
2. Letter from William A. Blattner, National Institutes of Health to Harold Varmus Publication: Produced: 10 September 1985 Subject(s): RetroviridaeTerminology as TopicAcquired Immunodeficiency Syndrome Archival Collection: The Harold Varmus Papers (Profiles in Science)
3. Letter from Robert C. Gallo, National Institutes of Health to Harold Varmus Publication: Produced: 17 March 1982 Subject(s): RetroviridaeTerminology as Topic Archival Collection: The Harold Varmus Papers (Profiles in Science)
4. Retroviruses: where did they come from, and where are they going? Publication: [Bethesda, Md. : Medical Arts and Photography Branch, National Institutes of Health], 1990 Subject(s): Retroviridae