1. Letter from Harold Varmus to Salvador E. Luria Creator: Varmus, Harold Date: 21 October 1975 Genre: Letters (correspondence)
2. Letter from Harold Varmus to Mike Fried, Imperial Cancer Research Fund Laboratories Creator: Varmus, Harold Date: 11 July 1977 Genre: Letters (correspondence)
3. Letter from Mike Fried, Imperial Cancer Research Fund Laboratories to Harold Varmus Creator: Imperial Cancer Research Fund (Great Britain). LaboratoriesFried, Mike Date: 2 August 1977 Genre: Letters (correspondence)