title: Studies on the effects of the antitumor agent camptothecin and derivatives on deoxyribonucleic acid. Mechanism of the scission of deoxyribonucleic acid by photoactivated camptothecin.
mesh_terms: D002166:Camptothecin / Q000031:analogs & derivatives* / Q000494:pharmacology* / Q000528:radiation effects; D004247:DNA / Q000378:metabolism*; D004277:DNA, Single-Stranded; D004278:DNA, Superhelical / Q000378:metabolism; D007364:Intercalating Agents / Q000494:pharmacology; D010777:Photochemistry; D013997:Time Factors
chemical_list: D004277:DNA, Single-Stranded; D004278:DNA, Superhelical; D007364:Intercalating Agents; D004247:DNA; D002166:Camptothecin