1. Methylation of DNA by carcinogens: some applications of chemical analytical methods;Lawley,1976
2. N-nitroso alkylating agents: formation and persistence of alkyl derivatives in mammalian nucleic acids as contributing factors in carcinogenesis;Singer;J. Natl. Cancer Inst.,1979
3. Formation and metabolism of alkylated nucleosides: possible role in carcinogenesis by nitroso compounds and alkylating agents;Pegg;Adv. Cancer Res.,1977
4. Persistence of O6-ethylguanine in rat-brain DNA: correlation with nervous system — specific carcinogenesis by ethylnitrosourea;Goth,1974
5. Cell proliferation and experimental liver cancer;Craddock,1976