141. Letter from Harold Varmus and J. Michael Bishop to Robert J. Huebner, National Cancer Institute Creator: Varmus, HaroldBishop, J. Michael Date: 7 March 1972 Genre: Letters (correspondence)
142. Letter from Harold Varmus to D. P. Georgiev, Academy of Sciences (U.S.S.R.) Creator: Varmus, Harold Date: 5 October 1982 Genre: Letters (correspondence)
143. Letter from Harold Varmus to Alan C. Davis, American Cancer Society Creator: Varmus, Harold Date: 10 November 1982 Genre: Letters (correspondence)